From the Popular Science archives.
Just months after Sputnik's launch, the USAF had a manned lunar landing program all figured out.
A sky full of super-Earths
Three of them may be habitable
The September 1 explosion has raised concerns
The closest potentially habitable planet has an intriguing interior
A look back at the spacecraft's greatest discoveries
Throwing shade on Earth's telescopes
Before women started flying in space, NASA was a little worried they might die having their periods
And still has a hot core
The Rogallo wing was NASA's multi-million dollar 1960s attempt to stop ending its missions with splashdowns. It didn't work.
The solar system's smallest planet finds a place in the sun
A new book showcases images from the forgotten Gemini mission, which taught NASA how to live and work in space
The greatest hits of Earth's unmanned spacecraft
The ups and downs of our solar system's least explored planet
Till mid-February, early risers will see the first five-planet alignment in a decade
There's a good reason why all of today's manned spacecraft look pretty much the same