According to New Scientist, aliens haven’t contacted us yet because it’s a big galaxy, and they haven’t had time to find us… Follow the link for the full story.

According to this story on CNN, Martian microbes may have been discovered – and accidentally killed – by NASA probes in the 1970s.

Speaking on BBC Radio 4′s Today Programme, Professor Stephen Hawking warns that the human race must spread to other stars in order to survive. Full story here.

Fancy a holiday somewhere really exotic? Click over to Stellar Destinations. It’s an interstellar travel agency run by fellow British SF writer Gareth D Jones.