Neil deGrasse-Tyson blesses a flat-earth rap diss

Cassini starts preparing for its sensational grand finale

'The Martian' VFX reel shows how they put Matt Damon on Mars

Hubble shows some of the galaxy's biggest, brightest stars

Lockheed Martin works on smaller, more powerful telescope tech

Jeff Bezos' Blue Origin sent its rocket to space... again

It's a conspiracy! You want to believe

SpaceX Dragon capsule proves it can hover

Space balloon company finds a home in Arizona

Astronomers may have found the Solar System's 9th planet

NASA's probes shed light on the Van Allen radiation belt

NASA wants your ideas for its cube robot's arm

Watch PBS Kids' latest show online, before it reaches TV

Scientists reanimate tiny frozen animals after 30 years

ICYMI: Space X's near-landing, Fukushima's new robot and more

Here's how you make coffee in the International Space Station

Russia has plans to nuke Earth-bound asteroids, if necessary

This color-changing polymer warns of tiny damage you can't see

Comets don't explain the strange 'alien megastructure' star

Astronauts grow their first flower in space