NASA's Mars Helicopter recharges its batteries for the very first time en route to the Red Planet

NASA's Ingenuity Mars helicopter tucked away under the Perseverance rover NASA
  • The Mars Helicopter tucked under the belly of the Perseverance rover just charged itself in outer space for the very first time.
  • The batteries charged to around 35% over eight hours.
  • The National Aeronautics and Space Administration’s (NASA) Mars mission is two weeks into its seven-month cruise towards the Red Planet and plans to charge the Ingenuity Mars helicopter’s batteries every two weeks.
As the National Aeronautics and Space Administration’s ( NASA) Perseverance rover hits the two-week mark in its seven-month cruises towards Mars, the helicopter tucked under its belly just charged itself in outer space for the very first time.

Artist's illustration of the Ingenuity Mars helicopter taking flight on the Red PlanetNASA

If successful in its mission on Mars, Ingenuity will be the first chopper to fly on a planet other than Earth. But to get off the ground, it needs its six lithium-ion batteries to stay in prime condition.

“This charge activity shows we have survived launch and that so far we can handle the harsh environment of interplanetary space,” said MiMi Aung, the Ingenuity Mars Helicopter project manager.

For the eight hours, NASA’s team charged the batteries to 35%. A low charge state is optimal for health during the cruise to Mars, according to the space agency. Going forward, the batteries will now be charged every two weeks for the next seven months.

What happens when the helicopter reaches Mars?
Once the Ingenuity Mars helicopter and the Perseverance rover have completed their 505 million kilometer journey through space, NASA’s engineers will wait another two months before separating the two.


At that time, the team will be on the lookout for potential airfields that are relatively flat and obstruction-free to park the chopper.

Once a suitable airfield has been located, the rover will drive to the center and deploy the helicopter — a process that should take around six days, accounting for checks and balances. After that, it’s up to Ingenuity to charge itself using its solar panels.


When the chopper is ready, NASA is hoping to perform a series of flight tests over 30 Martian days. The first test will be a quick 20 to 30-second flight just a few feet off the ground. This will be the first flight on another planet, that too on a planet, where the atmosphere is dramatically different from Earth’s.

Mars’ atmosphere is 99% less dense, which means the helicopter’s blades need to spin a lot faster than they would need to on Earth. As the tests progress, the research team will incrementally increase the distance and altitude.

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