It's not just a big deal for future space tourists, either.
Experts still aren't sure how the sixth military branch would actually work.
It all depends on who you ask
This probably isn't covered under Elon Musk's warranty...
The simplest explanation is also the likeliest.
Researchers monitored microbes on a mock flight to Mars.
It's on Google Street View, and it looks incredible.
Congress has only approved funding through 2024. What happens then?
A new plant habitat is on its way to the space station
Asgardia might become a legit state, but don't count on it
To gain an edge here on Earth, China is pushing ahead in space
The new era of space strategy
Virgin Galactic says welcome aboard
Astronauts will periodically enter the habitat designed by Bigelow Aerospace
Apollo 10 heard eerie music around the Moon, but it's really not too mysterious.
They do come from Antarctica, after all.
One step closer to owning pieces of asteroids?
A controversial bill would give companies the right to own natural resources in space, and it may pass in the Senate by the end of September
With environmentally friendly engines
HoloLens already used in weightless simulation free-fall flights
A sweet experiment
World View sets a new record in the quest to conquer the stratosphere