Results show the human body changes, but not dramatically.
Conventional wisdom has it that aliens should be either everywhere, or nowhere. A new model suggests they can be both.
A real breath of fresh air.
Earth's orbit is becoming dangerously crowded with space junk.
Congress has only approved funding through 2024. What happens then?
Suspended animation may help us survive interplanetary travel, but it won't keep us alive for 120 years
7 vehicles that will carry humanity into orbit and beyond very soon
Prepare for some timey-wimey...stuff
Four little probes tell the story of space weather
The star system is 25 trillion miles away
The baron of low-Earth orbit
Sometimes you just need a rocket that flies at 2 million miles per hour
The space race is officially back on, but slower and steady may win the race
The company now aims to launch and land its upgraded rocket on Monday evening
In 1952, the Hayden Planetarium offered applicants the trip of a lifetime
But can it ever hope to compete with SpaceX?
Slow but steady sun-powered spacecraft could transform space travel
Space travel is going electric
Space Tourism Can Survive The Blow, But It Won't Be Easy—Or Cheap
But for now, these cool exoplanet posters are the best the agency can do
Human hibernation could be a great way to get to Mars (and beyond), but a few big questions remain.
Now comes the hard part: actually landing.