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<ul><li>Apophis, the '<keyword id="8002265" type="UNKNOWN" weightage="20" keywordseo="god-of-chaos">God of Chaos</keyword>' asteroid will be passing by Earth on April 13, 2029.</li><li>The asteroid could do considerable damage if it were to collide into Earth. </li><li>According to Billionaire <keyword id="6355315" type="UNKNOWN" weightage="20" keywordseo="elon-musk">Elon Musk</keyword>, CEO and Founder of Tesla and SpaceX, the asteroid is coming and we have defence.</li></ul>Apophis, also known as the 'God of Chaos' asteroid, will be making its way to Earth in ten years. The odds of a <a href="https://www.businessinsider.in/what-is-asteroid-meteorite-and-meteor/articleshow/70654013.cms">head-on collision</a> with the 340 meter asteroid is one in 45,000. But as it passes by, it will all but brush with the Earth’s surface, coming as close as 30,000 kilometers. <div type="image" title="PIA23195_hires (1)_edited" msid="70748398" hostid="261" caption="&amp;lt;p&amp;gt;Trajectory of Apophis as it passes by Earth on April 13, 2029&amp;lt;/p&amp;gt;"></div>

 Should the ‘God of Chaos’ choose to shift even a little bit, the <a href="https://www.businessinsider.in/what-happens-when-an-asteroid-actually-hits-earth/articleshow/70732006.cms">resulting impact will be catastrophic.</a> The after-effects will dwarf in comparison to any other asteroid that has ever hit Earth in human history. We currently have no defence Scientists speculate that it's only a matter of time before an asteroid hits Earth. The latest one to join the bandwagon is billionaire <a href="https://www.businessinsider.in/its-been-100-years-since-weve-seen-anybody-like-elon-musk-heres-why-thats-so-disorienting/articleshow/69813958.cms">Elon Musk</a>, the CEO of Tesla and SpaceX. "A big rock will hit Earth eventually and we currently have no defence," he said commenting on God of Chaos. <div type="twitter" handle="elonmusk" handlename="Elon Musk" image="http://pbs.twimg.com/profile_images/1163316023023427584/8lXw0O2Y_normal.jpg" favoritecount="36171" retweetcount="4190" status="Great name! Wouldn’t worry about this particular one, but a big rock will hit Earth eventually &amp; we currently have… https://t.co/uTndl0Fvf6" createdat="1566163586000" id="1163200504811249664"></div>

 He is not wrong. The National Aeronautics and Space Administration (NASA) has instruments in place to study and protect Earth from an asteroid that could potentially be dangerous. But, it has no actual protocols in place to defend the planet in case an asteroid is on a collision course. NASA only announced its first Planetary Defence Technology Demonstration earlier this year. The Double Asteroid Redirection Test (DART) will be the space agency's first mission to demonstrate its plans for how to defend itself. Earth's impact on the asteroid Most people are usually worried about how an asteroid will impact Earth but few think about the impact Earth would have on an asteroid. The God of Chaos, for instance, won't be immune to the effects of a close encounter with Earth. The planet's gravitational field will definitely have an impact on the asteroid's orbit and could change the way Apophis spins, according to scientists at NASA. Interestingly, the gravitational pull could also result in surface change on Apophis and cause an avalanche. An opportunity for science It's not uncommon for asteroids between 5-10 meters in size to pass by Earth but asteroids the size of Apophis are rare. They are fewer in number and don't normally cut this close to Earth. <div type="image" title="neo_edited" msid="70748377" hostid="261" caption="&amp;lt;p&amp;gt;Famous fly-bys of Near Earth Objects (NEOs)&amp;lt;/p&amp;gt;"></div>
 "We'll observe the asteroid with both optical and radar telescopes. With radar observations, we might be able to see surface details that are only a few meters in size," said Marin Brozovic, a radar scientist at NASA's Jet Propulsion Laboratory (JPL). See also: <a href="https://www.businessinsider.in/neil-degrasse-tyson-and-other-scientists-believe-asteroids-will-eventually-hit-earth/articleshow/70644547.cms">It might not be 'dinosaur destroying' but it's only a matter of time before an asteroid hits Earth</a> <a href="https://www.businessinsider.in/what-happens-when-an-asteroid-actually-hits-earth/articleshow/70732006.cms">What happens when an asteroid actually hits Earth</a> <a href="https://www.businessinsider.in/an-asteroid-nearly-half-the-size-of-mount-everest-might-be-on-a-collision-course-for-earth-in-less-than-a-year/articleshow/70698774.cms">An asteroid nearly half the size of Mount Everest might be on a collision course for Earth in less than a year</a>

Elon Musk says we have no defence against asteroid ‘God of Chaos'

<ul class="summary-list"><li>An <keyword id="6549794" type="UNKNOWN" weightage="60" keywordseo="asteroid">asteroid</keyword> called Apophis, after the ancient Egyptian god of chaos, will fly by <keyword id="6359982" type="LOCATION" weightage="60" keywordseo="earth">Earth</keyword> Friday night.</li><li>The space rock is more than 1,100 feet wide — wider than the Eiffel Tower is tall.</li><li>When Apophis returns in 2029, its path could intersect with high-altitude <keyword id="41530" type="ORGANIZATION" weightage="60" keywordseo="satellites">satellites</keyword> in Earth's orbit.</li></ul>An asteroid nearly four football fields wide is about to zoom by Earth.The space rock is named 99942 Apophis, after the ancient Egyptian god of chaos. It's is wider than the Eiffel Tower is tall: about 1,115 feet (340 meters).On Friday night at 8:15 p.m. ET, the asteroid will come within 10.4 million miles of Earth's surface. That's about 44 times the distance between Earth and the moon. But Apophis' next close flyby, on April 13, 2029, will bring the asteroid within 19,000 miles of Earth - that's in between our planet and the moon. It will be the closest any asteroid of Apophis' size has come to Earth's surface that scientists have known about in advance, <a href="https://solarsystem.nasa.gov/asteroids-comets-and-meteors/asteroids/apophis/in-depth/">according to NASA</a>. That future approach will even be close enough that the asteroid could collide with high-altitude communications satellites orbiting Earth.The animation below shows what the distance between Apophis and Earth will be eight years from now. The blue dots represent orbiting satellites, and the International Space Station is in pink.<h2>Preparing for Apophis' return</h2>Apophis won't be visible to the naked eye tonight - you'd need a telescope with at least a foot-long diameter to see it. But Rome's <a href="https://www.virtualtelescope.eu/" target="_blank" rel="noopener">Virtual Telescope Project</a> is offering an online viewing session at 7 p.m. ET.The asteroid's discovery made waves in 2004, since astronomers calculated at the time that there was a small chance it could hit the planet in 2029. <keyword id="6360409" type="UNKNOWN" weightage="60" keywordseo="Nasa">NASA</keyword> scientists have since <a href="https://solarsystem.nasa.gov/asteroids-comets-and-meteors/asteroids/apophis/in-depth/">revised that estimate</a>."We have known for some time that an impact with Earth is not possible during the 2029 close approach," Dave Tholen, a researcher at the University of Hawai'i Institute for Astronomy who helped discover Apophis, <a href="https://www.hawaii.edu/news/2020/10/26/new-massive-asteroid-findings/">said in October</a>.Every time an asteroid nears Earth, it's a chance for astronomers to study the space rock and learn about its shape and spin.When scientists first spotted Apophis in June 2004, they had just two days to inspect it before weather and technical issues got in the way. No images exist of the rock's surface. So this imminent close pass, as well as the one in 2029, will help scientists investigate Apophis' composition."The Apophis close approach in 2029 will be an incredible opportunity for <keyword id="41551" type="ENTERTAINMENT" weightage="100" keywordseo="science">science</keyword>," Marina Brozović, a radar scientist at NASA's Jet Propulsion Laboratory, said <a href="https://solarsystem.nasa.gov/news/923/scientists-planning-now-for-asteroid-flyby-a-decade-away/">in 2019</a>. "We'll observe the asteroid with both optical and radar telescopes. With radar observations, we might be able to see surface details that are only a few meters in size."During that 2029 flyby, Apophis will be visible to the naked eye, appearing as a fast-moving point of light that starts in the night sky over the Southern Hemisphere and moves across the globe from east to west.The <a href="https://www.youtube.com/watch?v=1PLIAgXjV9o&amp;t=16s=16s">NASA animation</a> below shows Apophis' path on April 13, 2029.<h2>Apophis has a 1 in 380,000 chance of striking Earth in 2068</h2>Apophis originated from the asteroid belt between Mars and Jupiter. So far, NASA knows it is made up of silicate rocks, nickel, and iron. Radar images suggest it looks <a href="https://solarsystem.nasa.gov/asteroids-comets-and-meteors/asteroids/apophis/in-depth/">like a peanut</a>.After 2029, Apophis will have more near-Earth encounters, passing by again in 2036 and 2068. There's no chance of an impact in 2036, but <a href="https://cneos.jpl.nasa.gov/sentry/details.html#?des=99942">NASA calculations</a> suggest a 1 in 380,000 chance that Apophis could strike in 2068.Until last year, astronomers thought it was impossible that Apophis would strike Earth in 2068, but that changed after Tholen's team presented <a href="https://www.hawaii.edu/news/2020/10/26/new-massive-asteroid-findings/">new research</a> at the annual meeting of the <a href="https://aas.org/">American Astronomical Society</a>. The group showed the asteroid was changing speed and direction over time.<div type="image" title="asteroid vesta" height="1001" width="1334" msid="81358973" hostid="261"></div>These changes come from a process known as Yarkovsky acceleration: As <keyword id="81841" type="PERSON" weightage="60" keywordseo="Asteroids">asteroids</keyword> absorb energy from the sun, they radiate the energy out as heat, which slightly changes their orbital paths.The recent research found that this is happening to Apophis.The asteroid's orbit is shifting by about 558 feet per year, Tholen said - which is "enough to keep the 2068 impact scenario in play."

An Eiffel Tower-sized asteroid is about to whiz by Earth. When it returns in 8 years, it could cross paths with our satellites.

<div class="KonaFilter image-container display-table"><div><div class="image on-image"></div></div></div><ul class="summary-list"><li>A 1,100-foot-wide rock named 99942 Apophis is on course to pass close to Earth on Friday, April 13, 2029.</li><li>The asteroid will be 19,000 miles above the earth's surface and visible to the naked eye.</li><li>It is rare for an asteroid of this size to pass Earth so closely, according to NASA.</li><li><a href="https://www.businessinsider.com/?hprecirc-bullet">Visit BusinessInsider.com for more stories.</a></li></ul>A massive&#xa0;<a href="https://www.standard.co.uk/topic/asteroid" data-vars-item-name="BL-4132766-/topic/asteroid" data-vars-event-id="c23">asteroid</a>&#xa0;will be visible to the naked eye when it passes close to&#xa0;<a href="https://www.standard.co.uk/topic/earth" data-vars-item-name="BL-4132766-/topic/earth" data-vars-event-id="c23">Earth</a>&#xa0;within the same distance as spacecraft that orbit the planet, according to&#xa0;<a href="https://www.standard.co.uk/topic/nasa" data-vars-item-name="BL-4132766-/topic/nasa" data-vars-event-id="c23">NASA</a>. &#xa0;The 1,100-foot-wide rock named 99942 Apophis will shoot across the sky like a "moving star-like point of light", getting brighter and faster on Friday April 13 2029.At 19,000 miles above the earth's surface, it will first become visible to the naked eye in the night sky over the Southern Hemisphere from the east coast to the west coast of Australia.The asteroid will then pass across the Indian ocean, moving west above Africa, then travelling above the Atlantic Ocean in just an hour, reaching the US by the evening.&#xa0;It is rare for an asteroid of this size to pass Earth so closely, according to&#xa0;NASA, which says&#xa0;that smaller asteroids from 10-20 metres have been spotted at similar distances but those the size of&#xa0;Apophis&#xa0;are much fewer.<div cnx-creative-type="VideoMonetization">NASA scientists discussed the observation and science opportunities for the celestial event at the 2019 Planetary Defence Conference in Maryland on Tuesday.According to researchers, Apophis will travel more than the width of the full moon within a minute and will shine as bright as the stars in the Little Dipper constellation."The Apophis close approach in 2029 will be an incredible opportunity for science," said Marina Brozović, a radar scientist at NASA's Jet Propulsion Laboratory in Pasadena, California."We'll observe the asteroid with both optical and radar telescopes."With radar observations, we might be able to see surface details that are only a few meters in size."When a team of astronomers at the Kitt Peak National Observatory discovered Apophis in 2004, initial orbital calculations revealed that the asteroid had a 2.7% chance of impacting Earth in 2029.However, additional observations completely ruled out that possibility, showing that Apophis still has a small chance of impacting Earth -&#xa0;less than 1 in 100,000 - many decades from now.Davide Farnocchia, an astronomer at JLP's Center for Near Earth Objects Studies said: "We already know that the close encounter with Earth will change Apophis' orbit, but our models also show the close approach could change the way this asteroid spins, and it is possible that there will be some surface changes, like small avalanches.""Apophis is a representative of about 2,000 currently known Potentially Hazardous Asteroids," said Paul Chodas, director of CNEOS. "By observing Apophis during its 2029 flyby, we will gain important scientific knowledge that could one day be used for planetary defence."</div><div></div> <div class="margin-top"> <h3>NOW WATCH: <a href="https://www.businessinsider.com/karlmann-king-worlds-most-expensive-suv-2019-4">The Karlmann King is a $2 million enormous ultra-luxury SUV built upon a Ford F-550</a></h3> <div> </div> </div>

A 1,100-foot-wide asteroid is on course to pass by Earth in a decade

<div class="image-container float_right" style="width:401px"><div class="image"></div><a href="http://en.wikipedia.org/wiki/File:Tunguska_event_fallen_trees.jpg">Wikimedia Commons</a>Tunguska</div>A <a href="http://www.businessinsider.com/fact-about-asteroid-2012-da12-2013-2">150-foot wide asteroid</a> is expected to make a record-close — but safe — flyby of Earth Friday afternoon. 
Although there is no chance that asteroid 2012 DA14 will smash into our planet (coincidentally <a href="http://www.businessinsider.com/officials-russian-meteorite-not-related-to-todays-asteroid-flyby-2013-2">a meteorite exploded over Russia Friday morning</a>), scientists say it's about the same size as the one that hit Siberia more than 100 years ago on June 30, 1908. 
Tunguska 
The historic <keyword id="52285" type="UNKNOWN" weightage="60" keywordseo="explosion">explosion</keyword> happened in <a href="http://en.wikipedia.org/wiki/File:Russia-CIA_WFB_Map--Tunguska.png">Tunguska</a>, a remote forest area in the middle of Siberia.
The blast had the power of <a href="http://en.wikipedia.org/wiki/Tunguska_event">15 megatons of TNT</a>, roughly a thousand times that of the atomic bomb dropped on Hiroshima Japan. The event was so powerful that it was felt and heard a thousand miles away.
Locals believed the blast was supernatural, <a href="http://www.youtube.com/watch?v=EiXpp-i442s">caused by a god</a> that was punishing people for their wickedness.
Scientists, on the other hand, <a href="http://science.nasa.gov/science-news/science-at-nasa/2008/30jun_tunguska/">believed it was a meteor</a>.
Here's Where It Gets Weird
Twenty years passed before the first Russian scientists went to the site to investigate.
If it was a meteor, there would be a crater and meteorite fragments.
However, there was no crater. And there were no fragments.
In fact, at the epicenter of the explosion was <a href="http://www.youtube.com/watch?v=EiXpp-i442s">a grove of untouched, fully grown trees</a>. Surrounding that tiny grove was around <a href="http://en.wikipedia.org/wiki/Tunguska_event">800 square miles of leveled trees</a>.
The blast had the hallmarks of an atomic bomb-like explosion. However, no scientific progress had been made in the area of <a href="http://en.wikipedia.org/wiki/History_of_nuclear_weapons">nuclear weapons until the 1930s</a>, more than two decades after the event.
Two Theories
Scientists believe that a football field-sized, <a href="http://blogs.scientificamerican.com/history-of-geology/2012/06/30/june-30-1908-the-tunguska-event/">solid ice chunk of a comet</a> entered Earth's atmosphere. When it encountered Earth's intense atmospheric pressure, it immediately exploded miles above the forest. Because it was made of ice, it left no extraterrestrial evidence.
Others believe it was caused by something much smaller: A nuclear-powered alien spaceship that crashed into the Earth.
A hundred years later, neither side seems to have fully convinced the other camp.

THE TUNGUSKA EVENT: This Is What Would Happen If Today's Flyby Asteroid Hit Earth

<ul><li>Ufologolist Michael Horn claims that the '<keyword id="8002265" type="UNKNOWN" weightage="20" keywordseo="god-of-chaos">God of Chaos</keyword>' will strike Europe, the area between the North Sea and the Black Sea, when it visits Earth in 2029.</li><li>Horn believes the impact with crack the Earth open and let out massive gases, which would results in deaths within the immediate area.</li><li>NASA, on the other hand, claims that there is only a one in 45,000 chance that Apophis will be crash into the planet.</li></ul>The asteroid Aphophis — nicknamed the ‘God of Choas’ — will be zooming past the Earth in 2029. And if it crashes into planet instead, it will be somewhere over Europe, according to Michael Horn — a research scientist and representative for Billy Meier, a ufologist. Horn told the <a href="https://www.express.co.uk/news/weird/1187996/Asteroid-NASA-latest-warning-news-God-of-Chaos-Apophis-update-Earth-impact-99942">Express</a> that he has the impact area narrowed down to between the Black Sea, which is on the eastern end of Europe, and the North Sea, which is in the northwest bordering the UK, Denmark and Norway. 
 <div type="image" title="asteroidmap_edited" msid="71537133" hostid="261" caption="&amp;lt;p&amp;gt;Area between the North Sea and the Black Sea where Michael Horn believes the asteroid will strike&amp;lt;/p&amp;gt;"></div>



 He also dismisses NASA’s claim that the likelihood of a collision is one in 45,000. He insists it’s a certainty. The potential impact would be like 880 million tons of TNT exploding simultaneously. This would make it 65,000 times more destructive than the Hiroshima nuclear disaster. Earth will crack open Horn believes that not only will the asteroid crash into the Earth, it will also crack it open. The split in the planet’s crust will release gases resulting in the death of millions in the immediate area, he told the <a href="https://www.express.co.uk/news/weird/1187996/Asteroid-NASA-latest-warning-news-God-of-Chaos-Apophis-update-Earth-impact-99942">Express.</a> Elon Musk, the founder of SpaceX, doesn’t believe that an impact is likely but does believe that the <a href="https://www.businessinsider.in/elon-musk-says-we-have-no-defence-against-asteroid-god-of-chaos/articleshow/70748251.cms">Earth has no defence</a> in such an event. "A big rock will hit Earth eventually and we currently have no defence," he said commenting on ‘God of Chaos’. <a href="https://www.jpl.nasa.gov/news/news.php?feature=7390">NASA</a> feels that the asteroid’s trajectory will definitely be affected by its close encounter will Earth and might even cause avalanches on the space object’s surface. The planet is no stranger to asteroid fly-bys but Apophis isn’t like other asteroids. Discovered by the National Aeronautics and Space Administration in 2004, it’s bigger than most asteroids with a diameter of 340 meters. And, as it passes by, the ‘God of Chaos’ will be a little over 30,000 kilometers from the Earth’s surface — a distance at which many spacecraft’s orbit the planet. See also: <a href="https://www.businessinsider.in/elon-musk-says-we-have-no-defence-against-asteroid-god-of-chaos/articleshow/70748251.cms">Elon Musk says we have no defence against asteroid ‘God of Chaos'</a>

Ufologist claims the ‘God of Chaos’ asteroid will strike somewhere over Europe

<ul><li>All it would take is an asteroid as big as a house travelling at 48,000 kilometers an hour colliding into Earth to have an impact equivalent to the Hiroshima nuclear bomb blast.</li><li>Any asteroid larger than one kilometer in diameter would push up so much dust and debris that it could block out the Sun and initiate another Ice Age.</li><li>Space agencies are keeping an eye on <keyword id="3106647" type="PERSON" weightage="20" keywordseo="near-earth-objects">Near Earth Objects</keyword> passing close to Earth but even their methods aren’t full proof.</li></ul>Movies like Deep Impact, <a href="https://www.businessinsider.in/RANKED-The-10-movies-that-are-going-to-dominate-the-box-office-this-summer/articleshow/52226358.cms">Armageddon</a>, and even the animated The Good Dinosaur paint a vivid picture of what it would be like if an asteroid actually hit Earth. And, while the movies might be fictional — the reality of hundreds of asteroids whizzing past the planet is not. The reports of asteroids bigger than the Pyramid of Giza and <a href="https://www.businessinsider.in/an-asteroid-nearly-half-the-size-of-mount-everest-might-be-on-a-collision-course-for-earth-in-less-than-a-year/articleshow/70698774.cms">half the size of Everest</a> passing by awfully close to Earth has gotten some scientists thinking that it’s only a matter of time before an asteroid will collide with the planet’s surface. And it only seems more likely since, despite the Center of Near Earth Object Studies (CNEOS) and the Near Earth Object Coordination Center (NEOCC), recently illustrated how their methodology isn’t full proof. An <a href="https://cneos.jpl.nasa.gov/ca/">undetected asteroid</a> dubbed 2019 OK missed crashing into Earth by a mere 73,000 kilometers on July 26 and space agencies didn’t know of it until the asteroid had already come and gone. 
 <div type="Youtube" id="Of3PK1O-6O0" title="What will happen if asteroids hit Earth" thumbUrl="https://i.ytimg.com/vi/Of3PK1O-6O0/mqdefault.jpg"></div>



 Size does matter All it would take is an asteroid that’s as big as a house travelling at 48,000 kilometers per hour to <a href="https://www.businessinsider.in/what-is-asteroid-meteorite-and-meteor/articleshow/70654013.cms">release the amount of energy</a> equivalent to the Hiroshima nuclear bomb blast. That means concrete buildings for at least half a mile around the impact site would be flattened and any city would face a grim fate. Increase the size of an asteroid to a 20 story building, the <a href="http://www.businessinsider.in/Russian-Meteor-Hit-Atmosphere-With-A-Force-Of-40-Hiroshima-Bombs/articleshow/21343758.cms">resulting impact </a>would be anywhere from 25 megatons to 50 megatons — the same as the largest nuclear bombs that in existence today. 
 <div type="image" title="2013_Chelyabinsk_meteor_trace" msid="70732061" hostid="261" caption="&amp;lt;p&amp;gt;The Chelyabinsk meteor that entered Earth&amp;#39;s atmosphere over Russia on 15 February 2013 had the explosive energy of 200 kilotonnes of TNT &amp;lt;/p&amp;gt;"></div>



 Any asteroid that spans <a href="https://www.businessinsider.in/how-large-asteroids-must-be-to-destroy-a-city-state-country-or-the-planet/articleshow/64806829.cms">more than a kilometer</a> in diameter can’t be comparable to any weapon that humans have created. The one million megatons of energy that would strike Earth will result in 10 times the damage from Hiroshima. And, like the asteroid that killed the dinosaurs, the dust and debris thrown back in the atmosphere would block out the sun. In case the asteroid lands in water instead of on land, the result wouldn’t be every different with tidal waves hundreds of feet high submerging whole coastlines. ‘The city killer’ asteroids The asteroid that snuck past Earth, 2019 OK, is between 57 to 130 meters in diameter making it as big as a second tallest statue in the world — the Spring Temple Buddha in China. And, it was travelling at a speed of 86,905 kilometers per hour when it whizzed past Earth. If the asteroid would have collided with Earth, it would have gone off like a nuclear weapon with the force of <a href="https://www.washingtonpost.com/nation/2019/07/26/it-snuck-up-us-city-killer-asteroid-just-missed-earth-scientists-almost-didnt-detect-it-time/">10 megatons</a> of TNT. When an asteroid of about the same size fell to Earth in 1908 — known as the <a href="https://science.nasa.gov/science-news/science-at-nasa/2008/30jun_tunguska">Tunguska Impact</a> — it leveled 2,000 square kilometers of forest in Siberia. 
 <div type="image" title="tunguska_kulik_strip" msid="70732018" hostid="261" caption="&amp;lt;p&amp;gt;Trees felled by the Tunguska explosion&amp;lt;/p&amp;gt;"></div>



 ‘Planet killer’ asteroids The biggest of asteroid to ever hit Earth 65 million years ago was so devastating that it wiped out all the dinosaurs. Not because the asteroid literally landed on them but because it threw up so much moisture and dust into the atmosphere that sunlight was nowhere to be found. No sunlight meant no heat. The resulting drop in temperatures brought on the ice age and the dinosaurs were driven to extinction. As of now, the CNEOS and the NEOCC, don’t have any asteroid that’s quite as big on their radars on a collision course for Earth — but they do know that <a href="https://www.businessinsider.in/a-huge-asteroid-just-flew-past-earth-it-didnt-hit-us-but-others-might/These-space-rocks-are-leftovers-from-the-solar-systems-formation-some-4-6-billion-years-ago-A-big-one-slamming-into-Earth-could-mean-our-end-/articleshow/51336184.cms?format=slideshow">they’re out there</a>, like the <a href="https://www.businessinsider.in/an-asteroid-nearly-half-the-size-of-mount-everest-might-be-on-a-collision-course-for-earth-in-less-than-a-year/articleshow/70698774.cms">1998 OR2 that’s meant to pass by Earth in less than a year.</a> See also: <a href="https://www.businessinsider.in/the-10-biggest-asteroids-that-could-crash-into-earth-this-year/articleshow/70686096.cms">The 10 biggest asteroids that could crash into Earth in 2019</a> <a href="https://www.businessinsider.in/what-is-asteroid-meteorite-and-meteor/articleshow/70654013.cms">An asteroid only turns into a meteor if it falls to Earth</a> <a href="https://www.businessinsider.in/an-asteroid-nearly-half-the-size-of-mount-everest-might-be-on-a-collision-course-for-earth-in-less-than-a-year/articleshow/70698774.cms">An asteroid nearly half the size of Mount Everest might be on a collision course for Earth in less than a year</a>

What happens when an asteroid actually hits Earth

<div class="KonaFilter image-container display-table float_right"><div><div class="image on-image">Shutterstock</div></div></div>With the Delta Aquarid meteor shower going on right now, and the crowd-favorite Perseid meteor shower hot on its heels, the next few weeks are going to be the prime time to watch some shooting stars light up the night sky.But while dust-sized bits of comets sizzling through our atmosphere put on a pretty awesome show, the consequences of Earth confronting one of these comets head on could actually be pretty disastrous.It's not something that you should be worried about, of course. NASA is on the lookout for any cosmic objects on a crash course with our planet, and they've found that the chances of us colliding with a comet or asteroid anytime soon are virtually zero.It's still pretty interesting to think about though. What would happen if one of these ancient, celestial chunks of ice, dust, and rock smacked into our planet?The 16-mile wide Swift-Tuttle comet - the progenitor of the Perseid meteor shower -hurtles through space at about 36 miles per second, more than 150 times the speed of sound.If a comet of this size struck Earth, the energy of the <a href="http://www.livescience.com/55484-swift-tuttle-collision-with-earth.html">impact would be about 300 times that of the asteroid</a> that scientists believed wiped out the dinosaurs, Donald Yeomans, a senior research scientist at NASA's Jet Propulsion Laboratory, told LiveScience.And the size of a comet or asteroid isn't the only thing to consider with cosmic collisions. While the impact of the comet would be pretty darn destructive, the brunt of the damage would come from the gases it released in Earth's atmosphere."Sulfur dioxide would <a href="http://www.livescience.com/55484-swift-tuttle-collision-with-earth.html">initially cause cooling, and then carbon dioxide would lead to long-term warming</a>," LiveScience writes. "An event like this would likely cause the planet's climate to change drastically, leading to mass extinctions around the globe."A comet colliding with Earth wouldn't necessarily signal mass extinctions and the end of human civilization though.While a comet landing smack dab in the ocean could trigger earthquakes and tsunamis, its atmospheric effects would actually be eased by the ocean. Considering 70 percent of Earth is covered in ocean, our odds aren't terrible.But let's hope we don't have to roll the dice anytime soon. <div class="margin-top"> <h3>NOW WATCH: <a href="http://www.businessinsider.com/how-much-damage-could-an-asteroid-cause-2016-6">This is how big an asteroid would need to be to wipe out New York City </a></h3> <div> <div> <div class="ooyala-video-player" data-video-autoplay="false" data-video-id="Nra2JmMjE6kw4VXVz2qYVgBPd5TH44hK" data-player-variable="ooyalapopvideo" id="ooyalaplayer_popvideo" style="width:1280px;height:720px"></div> </div> </div> </div>

This is what would happen if a comet smacked into Earth

<ul><li>The <keyword id="1562308" type="PERSON" weightage="20" keywordseo="Chelyabinsk-Meteor">Chelyabinsk meteor</keyword> exploded over Russia with a force of 40 Hiroshima nuclear bombs. </li><li>Damage stretched for 500 square kilometers, destroying 7,200 building and injuring over 1,400 people in its wake.</li><li>But it could have been even worse had it exploded closer to earth like the Tunguska event. </li></ul>As many as 800 asteroids are hovering around Earth, posing many a risk. Some are particularly dangerous like the Apophis asteroid — <a href="https://www.businessinsider.in/elon-musk-says-we-have-no-defence-against-asteroid-god-of-chaos/articleshow/70748251.cms">God of Chaos</a> — that is supposed whiz past earth in 2029. There is another asteroid which is <a href="https://www.businessinsider.in/an-asteroid-nearly-half-the-size-of-mount-everest-might-be-on-a-collision-course-for-earth-in-less-than-a-year/articleshow/70698774.cms">half the size of Mount Everest</a> and is expected to pass by the planet in less than a year. But, these are just the ones we know about. In 2013, a space object entered the Earth’s atmosphere and exploded with such a force — equivalent to <a href="https://www.businessinsider.in/russian-meteor-hit-atmosphere-with-a-force-of-40-hiroshima-bombs/articleshow/21343758.cms">440,000 tons of TNT</a> — that it damaged buildings for 500 square kilometers. And, <a href="https://www.businessinsider.in/The-unsettling-reasons-no-one-saw-the-Chelyabinsk-meteor-over-Russia-coming-and-why-it-could-happen-again/articleshow/51898217.cms">nobody saw it coming</a>. <div type="Youtube" id="iCawTYPtehk" title="Взрыв метеорита над Челябинском 15.02.2013.avi" thumbUrl="https://i.ytimg.com/vi/iCawTYPtehk/mqdefault.jpg"></div>

 Chelyabinsk meteor Dubbed the Chelyabinsk meteor after its point of impact in Russia, the house-sized asteroid was a ‘<a href="https://www.businessinsider.in/nasa-chief-warns-people-need-to-take-the-threat-of-a-meteor-crashing-into-earth-much-more-seriously/articleshow/69146504.cms">cosmic wake-up call</a>’, according to NASA’s Planetary Defense Officer <a href="https://www.nasa.gov/feature/five-years-after-the-chelyabinsk-meteor-nasa-leads-efforts-in-planetary-defense">Lindley Johnson</a>. The meteor exploded a mere 30 kilometers from the Earth’s surface over a region that was home to around a million people. <div type="image" title="99738-790f0-64394570-m750x740-uf6c6e_edited" msid="70782724" hostid="261" caption="&amp;lt;p&amp;gt;A picture taken of the Chelyabinsk meteor&amp;#39;s smoke trail with the double plumes visible either side.&amp;lt;/p&amp;gt;"></div>

 The explosion was so bright — even 30 times brighter than the Sun for a moment — that it could be seen from a 100 kilometers away right before windows were shattered, doors were broken, walls were brought down and even whole factories collapsed. <div type="image" title="640px-Цинковый_завод_Челябинска_edited" msid="70782795" hostid="261" caption="&amp;lt;p&amp;gt;The shock from the meteor resulted in a roof collapse over the warehouse section of a zinc factory in Chelyabinsk&amp;lt;/p&amp;gt;"></div>

 Over 7,200 buildings expanding across six cities in Chelyabinsk were damaged by the effects of the blast. <div type="image" title="99738-adca5-64394583-m750x740-ue53ea_edited" msid="70782851" hostid="261" caption="&amp;lt;p&amp;gt;Leftover glass shards after windows exploded in Chelyabinsk&amp;lt;/p&amp;gt;"></div>

 Over 1,400 people were injured in the blast according to Russian authorities. The effects of the asteroid ranged from broken spines to ultra violet burns on their skin. Some people also reported temporary flash blindness from looking directly at the meteor. The entire <a href="https://www.businessinsider.in/Russians-Thought-The-Meteor-Was-A-Bomb-Or-Terrorist-Attack/The-meteor-the-largest-reported-since-one-hit-Tunguska-Siberia-1908-exploded-over-the-Russian-city-of-Chelyabinsk-on-Friday-morning-Feb-15-in-that-region-/slideshow/21335141.cms">damage to Chelyabinsk</a> in terms of monetary loss came up to around $33 million at the time, according to the oblast governor. Thrice the size, four times the damage The Chelyabinsk meteor exploded above the surface of the planet and was still able to inflict damage for miles. Had the meteor actually crashed into the Earth — the resulting destruction would have been on a much larger scale. The <a href="http://www.businessinsider.in/TUNGUSKA-106-Years-Ago-A-Mysterious-Explosion-1000x-More-Powerful-Than-The-Hiroshima-Bomb-Rocked-Siberia/articleshow/37532646.cms">Tunguska meteor</a> that hit the Earth in 1908 — the largest known natural object to enter the planet’s atmosphere ever — flattened 2,000 square kilometers of forest. <div type="image" title="tu" msid="70782916" hostid="261" caption="&amp;lt;p&amp;gt;Impact of the Tunguska meteor&amp;lt;/p&amp;gt;"></div>

 Even though the difference in size between the two meteors is only around 45 meters, the damage was much greater since Tunguska disintegrated only 10 kilometers from the planet’s surface. <div type="image" title="517px-Tunguska_and_Chelyabinsk_meteoroid_size_edited" msid="70782963" hostid="261" caption="&amp;lt;p&amp;gt;Size comparison of the Tunguska meteor (TM) and the Chelyabinsk meteor (CM) to the Eiffel Tower and the Empire State Building&amp;lt;/p&amp;gt;"></div>

 So, instead of exploding with the energy of 440,000 tons — Tunguska dispelled around <a href="http://adsabs.harvard.edu/abs/1983AREPS..11..461S">15 megatons</a> of TNT, which is 1,000 times the amount of energy of the atomic bomb dropped over Hiroshima. It should be noted that there is some disagreement over the exact might of the explosion with <a href="https://share.sandia.gov/news/resources/releases/2007/asteroid.html">supercomputer estimates stating</a> that it was only around 3 megatons while a <a href="http://adsabs.harvard.edu/abs/2019Icar..327...83W">new study</a> published in 2019 estimates it to be around 20-30 megatons. The main difference between the two asteroid events was that with Chelyabinsk occurred in a highly populated region, the Tunguska event occurred in a sparsely populated area. Tunguska and Chelyabinsk meteors aren’t the only examples of asteroids that hit Earth — they’re only the largest and the most recent, respectively. In 1930, asteroids are said to have exploded over the Curuca River in Brazil and an iron meteorite fell on the Sikhote Alin Mountains in 1947. See also: <a href="https://www.businessinsider.in/an-asteroid-nearly-half-the-size-of-mount-everest-might-be-on-a-collision-course-for-earth-in-less-than-a-year/articleshow/70698774.cms">An asteroid nearly half the size of Mount Everest might be on a collision course for Earth in less than a year</a> <a href="https://www.businessinsider.in/elon-musk-says-we-have-no-defence-against-asteroid-god-of-chaos/articleshow/70748251.cms">Elon Musk says we have no defence against asteroid ‘God of Chaos'</a> <a href="https://www.businessinsider.in/what-happens-when-an-asteroid-actually-hits-earth/articleshow/70732006.cms">What happens when an asteroid actually hits Earth</a>

The last major asteroid to hit Earth destroyed 500 square kilometers — and it could have been much worse

<div class="image-container float_right" style="width:400px"><div class="image"></div>Shutterstock</div>Theoretical physicist Dr. Michio Kaku appeared on Comedy Central's "<a href="http://www.colbertnation.com/full-episodes/tue-february-26-2013-dr--michio-kaku">The Colbert Report</a>" last night to discuss the potential of Earth-smashing asteroids. 
Even small asteroids, like the one <a href="http://www.businessinsider.com/russia-meteor-aftermath-photos-2013-2">that recently exploded over Russia</a>, can cause disaster. It caused thousands of injuries from the shockwave that blew out windows and shook buildings.
These are called "century asteroids" because they hit the Earth on average about once every 100 years. The <keyword id="41531" type="COMPANY" weightage="60" keywordseo="space">space</keyword> rocks generally go unnoticed because they explode over the open ocean, but if they hit a populated area it could spell disaster.
And as cities spread out and grow, these asteroids become more of a threat to humans.
"We were blissfully unaware of the fact that we've had near misses and actual collisions with objects about the size of an apartment building," Kaku pointed out. 
So far the asteroids we've encountered have been "city-busters," says Kaku. But in 2036 we will have a "nation-buster." 
Kaku is referring the <a href="http://www.astrobio.net/pressrelease/3836/alert-to-the-approach-of-asteroid-apophis">Asteroid Apophis</a>, an <keyword id="6549794" type="UNKNOWN" weightage="60" keywordseo="asteroid">asteroid</keyword> 10 times bigger than the <a href="http://www.businessinsider.com/live-building-sized-asteroid-nears-earth-2013-2">one that skimmed Earth earlier this month</a>. According to Kaku, the asteroid will graze Earth's atmosphere in 2029. Depending on how much friction is created during that flyby, there is a window of opportunity that it could hit on its next pass in 2036.
What can we do? Experts have some dramatic plans up their sleeves.
Kaku says some plans include landing on a potentially hazardous space rock and placing a rocket on it to push it "slightly out of the way so that on the second pass it misses Earth."
An Armageddon-like tactic (exploding nukes in an asteroid) wouldn't work because blowing up a big, solid asteroid would just make hundreds of little baby asteroids that can spread out the damage making the impact equally, if not more, dangerous
Astronomers are also watching the skies for <keyword id="51550" type="UNKNOWN" weightage="60" keywordseo="comets">comets</keyword>. <keyword id="1400230" type="UNKNOWN" weightage="60" keywordseo="Comet-ISON">Comet ISON</keyword>, dubbed the "<a href="http://science.nasa.gov/science-news/science-at-nasa/2013/18jan_cometison/">comet of the century</a>" by <keyword id="6360409" type="ORGANIZATION" weightage="60" keywordseo="NASA">NASA</keyword>, will make its closest approach to the Sun in late November. If the comet survives, "it could emerge glowing as brightly as the Moon, briefly visible near the sun in broad daylight," says NASA.
Comets are different from asteroids for a number of reasons. The biggest difference is that asteroids are mostly made of rock and metals whereas comets are made of rock and ice. Comets come from the outer solar system and have a tail, made by ice vaporizing as the comet nears the sun. Nearly all asteroids orbit in the region of space between Mars and Jupiter.
The Comet ISON was discovered in September 2012 by Russian astronomers Vitali Nevski and Artyom Novichonok. It poses no threat of crashing into Earth but should make for an amazing sight.

A 'Nation-Busting' Asteroid Could Hit Earth In 2036

Following is a transcript of the video.What would happen if Earth became 2º C (4.6º F) warmer. In 2015, the Paris Agreement declared that the world should try to keep Earth's warming trend to <a href="https://climate.nasa.gov/news/2458/why-a-half-degree-temperature-rise-is-a-big-deal/">well below 2°C</a> by 2100. Here's what would happen if temperatures did increase by 2° C. Sea levels will likely rise by 1.6 feet. Flooding coastlines worldwide. While the amount of fresh water may increase for high latitudes, East Africa, and parts of India and Sahel, subtropical regions may lose nearly one-third of its fresh water.Making matters worse, heat waves could intensify. Tropical regions may experience <a href="https://www.earth-syst-dynam.net/7/327/2016/esd-7-327-2016-corrigendum.pdf">heat waves</a> for up to 3 months which will affect the growth of certain staple crops. These areas will likely produce less wheat and corn but slightly more soy and rice.Which could affect overall diets worldwide. Likewise, North Asia may see a boost in soy crops. Growing up to a quarter more soy each year. For sea life, the situation is more dire. Warmer oceans will do <a href="https://www.earth-syst-dynam.net/7/327/2016/esd-7-327-2016.pdf">irreversible damage</a> to 99% of coral reefs. As the reefs die off, it will disrupt ecosystems for up to 9 million different species.This scenario was forecasted by the <a href="https://www.egu.eu/news/230/15c-vs-2c-global-warming-new-study-shows-why-half-a-degree-matters/">European Geosciences Union</a> in 2016. In 2017, another team of scientists estimated there's a <a href="http://www.businessinsider.com/climate-change-earth-two-degrees-warming-2100-new-studies-2017-7">95% chance</a> Earth will warm more than 2 ºC by 2100. Bleak forecasts may not be enough to stop humans from warming Earth. But at least they're a guide on how to prepare for a frightening future.

What would happen if Earth became 2 degrees warmer

<ul class="summary-list"><li>Although it's impossible to say exactly what would happen if all <a href="https://www.businessinsider.com/category/insects">insects</a> on <a href="https://www.businessinsider.com/category/earth">Earth</a> suddenly vanished, it's likely that civilization and <a href="https://www.businessinsider.com/category/ecosystem">ecosystems</a> would be in serious trouble. </li><li>Nitrogen-rich feces would potentially build up, choking plant life and preventing new growth. </li><li>Meanwhile, no dermestid beetles and other corpse-eaters would lead to fewer custodians available to clean dead bodies and recycle their nutrients back into the ecosystem. </li><li>Plus, the absence of <a href="https://www.businessinsider.com/category/mosquitoes">mosquitoes</a> and other insects would mean fewer food sources for bats, birds, and other animals up the food chain. </li><li><a href="https://www.businessinsider.com/?hprecirc-bullet">Visit Business Insider's homepage for more stories.</a></li></ul>Following is a transcript of the video.Humans might have built civilizations, but insects own the world. After all, over half of all known species are insects. So if they all suddenly vanished, you'd notice. No more summers of singing cicadas and flickering fireflies. No bees to pollinate apple, cherry, peach, or almond trees. No one to make honey. A world without insects means a world with empty grocery-store shelves. But that would be just the beginning of our problems. Now, it's impossible to say exactly what would go down, but here's a worst-case scenario of what could happen if all the insects disappeared.There are a few insects most people would be happy to see vanish. Like mosquitoes. They kill hundreds of thousands of people every year by transmitting malaria, West Nile virus, and other diseases. But if they disappeared tomorrow, we might actually miss them. There are over 3,000 species of mosquitoes on Earth, all of which are food to birds, bats, frogs, and other animals. No more mosquitoes means these creatures and the animals that eat them could go hungry. The same goes for the dreaded cockroach, a protein-packed meal for birds, rodents, and even humans in some parts of the world. If we lost all 4,400 species of roach, entire ecosystems would struggle to survive. Believe it or not, we'd have even worse troubles ahead since we'd face a serious poop problem without one of the world's greatest recyclers, the dung beetle.You see, history has taught us exactly what happens when these critters can't do their job. Back in 1788, the British introduced cattle to Australia, and these cows pooped a lot. Each one poops enough to fill five tennis courts every year. But while the dung beetles back in Britain would eat and break down cow poo, the native Australian beetles wouldn't touch the stuff because they evolved to munch only on dry, fibrous marsupial dung. So the cow poop piled up. By 1960, the cattle had carpeted 500,000 acres of pasture in dung. That's enough to cover over half of Rhode Island, and while a little bit of poop is great for fertilizer, this ocean of dung would flood plants with nitrogen, making it impossible for anything to grow. So, imagine if all 8,000 species of dung beetle, plus other doo-dining insects, like flies, vanished worldwide. The land would be knee-deep in...you know.Farmland, forest, and desert would all collapse, and floating throughout would be loads of corpses. You see, most animals won't eat dead bodies. That's where flesh-eating beetles, aka dermestids, and other corpse-munching insects come in. Over 500 species of these grisly undertakers live worldwide, devouring dead flesh until nothing but bone remains. Without them, there would be fewer custodians around to clean up the mess. Sure, there would still be hungry vultures and bacteria around to help, but it wouldn't be enough.So, that's where we could end up in an insect-less world. Starving to death while drowning in a sea of poop and corpses.

Here's what would happen if all insects on Earth disappeared

What would happen if you fell through the center of the Earth

<div id="ooyalaplayer" style="width: 800px; height: 450px;"></div><div style="display:none;" id="kalturavideoplaceholder">kalturavideoplaceholder</div><div><div><div class="g-ytsubscribe" data-channelid="UC9uD-W5zQHQuAVT2GdcLCvg" data-layout="full" data-count="hidden"></div></div></div>Here's what would happen if you jumped through a vacuumed hole&#xa0;that cut through the center of the Earth.Produced by&#xa0;<a href="http://www.businessinsider.com/author/delano-samuels" title="Delano Samuels's Profile">Delano Samuels</a>. Original reporting by Jessica Orwig.Follow BI Video:&#xa0;<a href="https://twitter.com/BI_Video">On Twitter</a>

<ul><li>Asteroid 2019 GT3 is going to fly past Earth on Friday at a speed of 49,000 kilometers. </li><li>The asteroid is about as big as a football stadium. </li><li>It's not on a collision course for Earth but is still one of the asteroids classified as 'potentially hazardous' by the National Aeronautics and Space Agency (NASA). </li></ul>The Earth is under <a href="https://www.businessinsider.in/what-is-asteroid-meteorite-and-meteor/articleshow/70654013.cms">constant threat</a> of asteroids but most fly past and don't actually hit the planet. Asteroid 2019 GT3 is one such asteroid that is 'potentially hazardous' but will be at least 7.5 million kilometers away from the Earth. Asteroid 2019 GT3 is a new addition to the NASA's <a href="https://cneos.jpl.nasa.gov/ca/">Asteroid Watch</a> only discovered earlier this year in April 2019. It's about as big as a stadium with a diameter between 170 meters and 380 meters. When it blasts past Earth on 6 September 2019, it will be flying at a speed of 49,000 kilometers per hour. "Potentially hazardous asteroids are currently defined based on parameters that measure the asteroid's potential to make threatening close approaches to the Earth," states the Center for Near Earth Object Studies "Specifically, all asteroids with a minimum orbit intersection distance of 0.5 [astronomical units] or less and an absolute magnitude of 22.0 or less are considered PHAs," it added. Asteroid's 'potential' for destruction There's no chance of Asteroid 2019 GT3 striking Earth. Even if it were to somehow be on a collision course for the planet, the asteroid wouldn't cause any kind of '<a href="https://www.businessinsider.in/neil-degrasse-tyson-and-other-scientists-believe-asteroids-will-eventually-hit-earth/articleshow/70644547.cms">mass extinction</a>' but it would definitely take out a small city. Scientists believe that an asteroid impact would result in a <a href="https://www.businessinsider.in/what-happens-when-an-asteroid-actually-hits-earth/articleshow/70732006.cms">'nuclear'-like winter</a> on the planet. It would only take an asteroid as big as a house travelling at 48,000 kilometers an hour to have an <a href="https://www.businessinsider.in/the-last-major-asteroid-to-hit-earth-destroyed-500-square-kilometers-and-it-could-have-been-much-worse/articleshow/70782507.cms">impact equivalent</a> to that of the Hiroshima bomb blast. By that comparison, Asteroid 2019 GT3 is bigger and faster. And, it's even more concerning in light of even more massive asteroids that are planned to come uncomfortably close to Earth in the near future. <a href="https://www.businessinsider.in/an-asteroid-nearly-half-the-size-of-mount-everest-might-be-on-a-collision-course-for-earth-in-less-than-a-year/articleshow/70698774.cms">1992 OR2</a>, for instance, is half the size of Everest and will only be 6.4 million kilometers from Earth as it flies by on 29 April 2020. See also: <a href="https://www.businessinsider.in/the-10-biggest-asteroids-that-could-crash-into-earth-this-year/articleshow/70686096.cms">The 10 biggest asteroids that could crash into Earth in 2019</a> <a href="https://www.businessinsider.in/the-last-major-asteroid-to-hit-earth-destroyed-500-square-kilometers-and-it-could-have-been-much-worse/articleshow/70782507.cms">The last major asteroid to hit Earth destroyed 500 square kilometers — and it could have been much worse</a> <a href="https://www.businessinsider.in/neil-degrasse-tyson-and-other-scientists-believe-asteroids-will-eventually-hit-earth/articleshow/70644547.cms">It might not be 'dinosaur destroying' but it's only a matter of time before an asteroid hits Earth</a>

You Searched For "what would happen if apophis hit earth" and got 14 results

Elon Musk says we have no defence against asteroid ‘God of Chaos'

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An Eiffel Tower-sized asteroid is about to whiz by Earth. When it returns in 8 years, it could cross paths with our satellites.

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THE TUNGUSKA EVENT: This Is What Would Happen If Today's Flyby Asteroid Hit Earth

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Ufologist claims the ‘God of Chaos’ asteroid will strike somewhere over Europe

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What happens when an asteroid actually hits Earth

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This is what would happen if a comet smacked into Earth

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A 'Nation-Busting' Asteroid Could Hit Earth In 2036

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Here's what would happen if all insects on Earth disappeared

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What would happen if you fell through the center of the Earth

What would happen if you fell through the center of the Earth

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