We haven't seen a rock like this in 50 years.
What the heck is a Space Force? We finally (sort of) know.
In 1966, the Air Force sent an uncrewed space station into orbit
It all depends on who you ask
We all like having options.
Earth's orbit is becoming dangerously crowded with space junk.
The agency's new GIPHY page is a delight
The country's longest manned mission is part of their plan for a permanent orbital outpost
Everything is awesome!
The new era of space strategy
Mike Massimino shows me around
The ISS is fine, don't worry
Inks deal to launch giant inflatable habitats starting in 2020
PopSci is at the launch site with fingers crossed
Four possible scenarios...
They do come from Antarctica, after all.
ISS commander Scott Kelly presents his playlist
The cosmonaut deserves a little more fame
Slow but steady sun-powered spacecraft could transform space travel
Fifty years ago, in the pages of Popular Science, a famous rocket scientist foretold the importance of reusable rockets.
If Sierra Nevada can't build its vehicle, no one else can.