NASA dominated space and social media in 2016
The space agency was a big winner despite funding woes.
Record-breaking astronaut Scott Kelly retiring this April
His space-faring days may be over, but he'll continue to help with research.
Watch astronauts make outer space Skype calls with HoloLens
Connecting the International Space Station to Earth one call at a time.
Astronaut Scott Kelly will answer questions from space on Tumblr
Kelly is hosting 'Answer Time' live from the ISS at 1:45PM ET.
Astronaut Scott Kelly hosts a Reddit Q&A from space at 4PM ET
NASA's Space Station veteran wants you to ask him anything.
ICYMI: Humanoid moto bot, engineered desk marvel and more
Caring about ergonomics and hating it.
Meet the American astronaut who has spent the most time in space
And he'll be staying in low-Earth orbit until March 2016.
The Big Picture: Los Angeles' light pollution, as seen from space
This is what Los Angeles' light pollution looks like from space.