Knowtex

It's time to think far outside of the box regarding our preconceptions of how to find extraterrestrial civilizations.

We've known for a while that there are frozen water deposits just beneath the surface of the Martian poles, but now it seems that there are seasonal streams of liquid water that wind across the red planet's surface.

For three years, speculative biology enthusiast Gert van Dijk has been writing a hard science fiction blog called Furahan Biology and Allied Matters, which deals with the realistic ecosystem on the imaginary planet Furaha. This blog is a treasure trove of biogeekery.

Science fact or science fiction? Margarita Marinova from Caltech, USA, investigates the possibility of establishing life on Mars.

NASA scientists have discovered glycine, a fundamental building block of life, in samples of comet Wild 2 returned by NASA's Stardust spacecraft.