Here's Kelly's first stunning shot of Earth from space, taken 27 weeks ago.
His photos are filled with striking colors, from neon greens...
... To vibrant yellow. Unfortunately, Kelly used to not include where these photos were taken, leaving his Instagram audience to guess where these shots were taken.
But lately he's been getting much better, labeling his shots with hashtags to share its location, like this leaf-like picture over the #Sahara desert.
And this one over South America, which looks like something straight out of a kaleidescope.
Kelly has also been good at documenting huge natural disasters, like Hurricane Patricia, which reached winds up to 200 mph before making landfall.
His perspective living up on the International Space Station makes for some one-of-a-kind shots, like this one of a desert lake. Kelly remarks that the reflection from the cloud makes it look as if this lake is actually filled with liquid metal.
While he's up there, Kelly is taking part in studies to see what happens to the human body while it's out in space for a year, along with Kelly's twin, Mark who's on Earth for comparison.
Kelly labels the photos with the hashtag #EarthArt. It's easy to see why.
Kelly captures other amazing phenomenon, like these Northern Lights as seen with Chicago in the foreground.
Kelly recently made it past the halfway point on his yearlong tour in the ISS, which he celebrated with this Instagram selfie.
Kelly edged past US astronaut Mike Fincke’s record of 382 cumulative days in space on October 16. Kelly passed another milestone for the most time consecutively spent in space by a US astronaut on October 29.
Earlier in October, Kelly took to setting up photo series based on certain locations that showcase the wide variety in colors and textures in those areas. Here's his first in a series on the Australian continent.
This one, also in the series of the Australian continent, looks more like an abstract work of art than an actual place here on Earth.
Seriously. How are these photos real?!
Kelly's also started a series on industrialized China, highlighting different factory areas in the country. So far, he's shared five of his 10 pictures.
Kelly won't return back to Earth until March 2016, giving him plenty more time to take photos, like this one of China that's part of a larger series.
We'll keep watching along for more mesmerizing photos.