The simplest explanation is also the likeliest.
How much are you willing to pay to become an astronaut?
NASA announced the nine astronauts selected for its Commercial Crew program.
James Webb is now slated for a 2021 launch—only a bajillion years late.
Doesn't seem too fair.
A gallery of photos, visualizations, and other pictures of outer space.
American Nick Hague and Russian Alexey Ovchinin endured a rough emergency landing.
Nearly all of the water astronauts drink and shower with comes from their urine and sweat.
We asked a bunch of our favorite people about their holiday plans
Scott Kelly's got some competition
What is going on with my moon?
And other experiments launching to the International Space Station this month
The evidence is right in front of you.
We all like having options.
Wonder what space lettuce tastes like?
To Instagram and beyond
Space gets a little more crowded
7 vehicles that will carry humanity into orbit and beyond very soon
Europa, the outer solar system, and a lot of questions.
Time to step up your Twitter game, Earthlings.
It's the final countdown
In one of the most isolated places on the globe, the 'Spacecraft Cemetery' provides a watery grave
Orbital manufacturing is already paving the way for better solar panels, faster internet, cleaner computer chips, and lab-grown human hearts