'Ploonet' may be the most adorable name ever for a moon that leaves the nest

Japan's historic asteroid mission makes final touchdown for samples

Could a tiny spacecraft sail on a beam of light across the galaxy?

Scientists have picked up a radio signal from the other side of the universe

Who needs fireworks when you have the stars?

Few people on dry land saw the total solar eclipse — but you can

Why NASA is sending a winged robot to Saturn's moon, Titan

What to see in the night sky in July

Orbit map of the solar system reveals gorgeous planetary perspective

A meteorite smashed into Mars — and left the red planet black and blue

We're close to solving the mystery of those flashing lights on the moon

NASA spacecraft to map and sample asteroid that's heading our way