Fluid dynamics on the International Space Station makes growing tomatoes difficult.
Guardian of the galaxy.
The first time we've caught a baby black hole in action.
New high-res images from New Horizons reveal a very blobby space rock.
It's the farthest object we've ever spotted in our neighborhood.
Shamu dreams of Europa.
After a long trip, OSIRIS-REx gets down to business.
And in a great year for space exploration, that's saying something.
Time for a new plan.
James Webb is now slated for a 2021 launch—only a bajillion years late.
Can gardens help astronauts go farther?
How much are you willing to pay to become an astronaut?
The James Webb Space Telescope has an ever-expanding timeline—and projected cost.
Should we go? Can we afford to go? All this, and more.
New Horizons will soon find out what's up with MU69.
Though commercial operations are at least a decade away, career opportunities in asteroid mining are here today, experts say.
The company hopes to put robots on the moon's South Pole by 2020
Everything you need to know about NASA's plans to touch the sun.
Short answer: a time machine
Three of them may be habitable
While cutting funding for its own Mars programs
Unfortunately, NASA doesn't have a good game plan
The ocean-filled moon might hold the life we've long searched for in space. And scientists have one shot to reach it.
Introducing the High-Definition Space Telescope