The Challenger astronauts, lost 30 years ago today.

Astronaut Scott Kelly’s tiny space vegetable garden is looking pretty sad.

Astronaut phones home from space, gets his parents’ answering machine.

With all the Star Wars hype, it’s easy to forget real people are doing their actual jobs in space.

NASA is set to get a lot more money so it can search for alien life.

The internet connection on fake Mars is really slow.

Do you have the right stuff? The U.S. is looking for a few good astronauts.

NASA’s new video showing how CO2 moves through the atmosphere is both eerie and mesmerizing.

The Extraterrestrial Vote

Space Scientists Tell Ted Cruz Why He Should Care About Earth

Ted Cruz Wonders Why NASA Scientists Should Study Planet Earth

NASA: Get Ready for Terrifying Megadroughts, America

This Mesmerizing NASA Video Shows How Carbon Pollution Spreads Across the Planet

How I Fell Out of Love with Space Tourism

The Right-Wing Press' New Climate Change Lie

Watch the World's Forests Disappear On Google Earth

Ten Extraordinary Pictures From Mars

By Jupiter! Following Voyager 1's Mission