What the heck is a Space Force? We finally (sort of) know.
In 1966, the Air Force sent an uncrewed space station into orbit
How much are you willing to pay to become an astronaut?
A gallery of photos, visualizations, and other pictures of outer space.
To gain an edge here on Earth, China is pushing ahead in space
3D printing our way to the year 2050
Many hopefuls have signed up for a one-way ticket to the red planet. But if they aren't prepared, the trip may be a short one.
The final frontier is a photographic nightmare
Up close with Robert Bigelow and his dream of habitable bubbles in space
World View sets a new record in the quest to conquer the stratosphere
More than 200,000 aspiring space explorers volunteered for a one-way trip to Mars. Are they insane?
Rapid manufacturing methods may eliminate dependence on Russian rockets
The Dawn spacecraft could change the shape and scope of future missions
With no plans for future upgrades, the telescope faces a fiery end
Astronaut Leroy Chiao explains what it will take for commercial passengers to fly into space
One professor says an asteroid survey would be a better use of NASA's time and money.
Yesterday's Antares failure was not exactly unprecedented.
A new vehicle design could enable same-day shipping from the ISS to Earth, making science experiments in microgravity cheaper and easier.
Human hibernation could be a great way to get to Mars (and beyond), but a few big questions remain.
But CEO Bas Lansdorp says the study used bad data.
If Sierra Nevada can't build its vehicle, no one else can.
Will NASA be required to fund the Dream Chaser?
And it can be yours -- for a small fee