During his one-year mission aboard the International Space Station (ISS), NASA astronaut Scott Kelly has mastered the art of space photography. He has shared hundreds of photos with the world on his Twitter account to show us his life aboard the ISSand the breathtaking beauty of our planet. To commemorate the end of his one-year mission on March 1, 2016, here are 20 of his most amazing photos from space!

2016-02-12 – Day 321. Beautiful #Earth. Beautiful #Africa. #GoodNight from @space_station! #YearInSpace (Credit: NASA)

2015-09-23 – #EarthArt autumn leaves remind me of the good things that come with change. Happy #FirstDayofFall! #YearInSpace (Credit: NASA)

2016-02-03 – 5K times around Earth can seem like #GroundhogDay but still a privilege. #GoodNight frm @space_station! #YearInSpace (Credit: NASA)

2015-10-23 – Hurricane #Patricia approaches #Mexico. It’s massive. Be careful! #YearInSpace (Credit: NASA)

2015-12-01 – The peculiar and fascinating #EarthArt of #Australia from space. #YearInSpace (Credit: NASA)

2015-09-30 – #EarthArt Our planet seems to have a sense of humor at times. #YearInSpace (Credit: NASA)

2015-04-27 – Sometimes #Earth looks like another planet from @Space_Station. #YearInSpace (Credit: NASA)

2015-09-05 – Color palette of the #Spanish coast is an appealing morning view. #GoodMorning from @Space_Station! #YearInSpace (Credit: NASA)

2015-08-15 – Another pass through #Aurora. The sun is very active today, apparently. #YearInSpace (Credit: NASA)

2015-11-22 – Pictures like this make me really regret that my watercolors didn’t make it up here. #EarthArt #YearInSpace (Credit: NASA)

2015-06-17 – Day 82. The sun sets on another day aboard @Space_Station. Good night! #YearInSpace (Credit: NASA)

2015-10-10 – #EarthArt In 377 cumulative days in space, I’ve never seen this before today. #YearInSpace (Credit: NASA)

2015-10-29 – #SpaceWalkSelfie Back on the grid! Great first spacewalk yesterday. Now on to the next one next week. #YearInSpace (Credit: NASA)
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