Billions of years from now, the Sun will swell into a red giant, swallowing Mercury, Venus, and Earth. But that’s not the ...

The most striking feature of the Almaz station was the 23mm Nudelman-Rikhter (NR-23) cannon, a modified aircraft gun adapted ...

There's no shortage of round celestial objects in our universe. Planets, moons and stars all exhibit lovely spherical shapes.