<p>Astronaut Scott Kelly posted this photo of the Milky Way on Twitter, with the caption, "Day 135. <a href="https://www.flickr.com/photos/tags/MilkyWay.">#MilkyWay.</a> You're old, dusty, gassy and warped. But beautiful. Good night from @space_station!<a href="https://www.flickr.com/photos/tags/YearInSpace%22.">#YearInSpace".</a></p>

Gassy, but Beautiful

Astronaut Scott Kelly posted this photo of the Milky Way on Twitter, with the caption, "Day 135. #MilkyWay. You're old, dusty, gassy and warped. But beautiful. Good night from @space_station!#YearInSpace".

Photograph by Scott Kelly, NASA

Six Months in Space From an Astronaut’s Point of View

We’ve picked 10 of our favorite shots shared by astronaut Scott Kelly aboard the International Space Station to celebrate the halfway point of his mission.

NASA astronaut Scott Kelly and Russian cosmonaut Mikhail Kornienko are a living experiment in what microgravity can do to the human body.

The two men completed the first six months of their 342-day stay on the International Space Station on Tuesday. This is the longest sojourn in space ever assigned to a NASA astronaut, although Russian cosmonauts have spent several missions of a year or longer on the Mir station.

Kelly and Kornienko are charting the changes to their bodies that occur in the microgravity environment of the space station, information that might help scientists back on Earth prepare for a journey to Mars one day.

Some of Kelly’s data will be compared to his identical twin brother’s, retired astronaut Mark

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