What Astronauts Miss Most In Space Isn't What You'd Expect

NASA astronaut Scott Kelly returns to Earth next month after spending a year aboard the International Space Station, marking the longest mission in American history. When he finally comes home, he'll not only appreciate being with his family again but also in the presence of ... weather.

Yes, you read that correctly. Kelly opened up about what he misses the most during space missions in a new PBS video (above), which was provided first exclusively to The Huffington Post. The clip is from a two-part PBS series titled "A Year In Space " that premieres on March 2 at 8 p.m. EST.

"What you miss is the people, and then the weather," Kelly says in the video. "Going outside, there's no sun on your face. ... You never feel this cool breeze. It's always exactly the same."

Russian cosmonaut Mikhail Kornienko, who is also spending a full year in space alongside Kelly, agrees that it's difficult to go for so long without being in nature.

"You miss Earth, even though it's always in front of you," Kornienko says in the video. "You miss water that flows from the faucet and doesn't fly around you. All the normal everyday things that we often don't value here, up there, they become most important."

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