NASA mulls three mission proposals

Osiris-Rex, SAGE or MoonRise

NASA hunts for Avatar's moon Pandora

They'll know it when they see it

Cassini spacecraft discovers Titan lake

?An "unsettling" combination of strangeness

Water World discovered by Harvard astronomers

It's a Super Earth

Astronomers discover Alien water world

Paradise lost

Sweet Dreams overshadow crisis: Boeing Dreamliner finally lifts off

Up, up and away...

Cassini snaps weird hexagon on Saturn

Reliable weather, there

Russian ICBM caused Norwegian UFO spiral

I want to believe

Life on Mars looks a bit more likely

Methane couldn't be coming from meteorites

Hubble Telescope snaps picture of distant galaxies

600 million years after the Big Bang?

Virgin Galactic unveils spaceship

Test flights to start next year

UK military closes UFO department

Ex-X Files

Black hole seen building its own galaxy

Forming 350 stars per year

NASA finds new evidence for life on Mars

Meteorite contains fossil bacteria

Bulgarian scientist says he talks to aliens

And they don't like us wearing lipstick

China readies second Moon mission

Projects manned mission by 2017

Cassini records Saturn's northern lights

A lightshow seven hundred miles high

Mars once had a huge ocean

Research shows extensive valley network

Be a Martian, says NASA

And make some coffee while you're at it

Leonid meteors promise great display tonight

Asia has the best seats in the house