Astronaut uses finger to plug hole on space station

10 incredible images of Saturn

What to see in the night sky in September

Eye in the sky watches Earth in riveting Hubble photo

Jupiter's atmosphere is still putting on a show

World's most advanced space laser prepares for launch

Meet 'Steve,' the rare celestial phenomenon lighting up the skies over Canada

VR experience takes you inside a black hole

Dazzling green fireball lights up Southeast U.S.

There's more than one 'moon' orbiting Earth

Why NASA wants to 'touch the sun'

The dark side of the Perseid meteor shower