Astrobio.net

Try failed stars for alien life

The search for alien life usually focuses on planets around other stars. But a lesser-known possibility is that life has sprung up on planets that somehow were ejected from their original solar systems and ...

Mar 31, 2011 3.8 / 5 (5) 1 | with audio podcast

New study finds apex fossils aren't life

Structures thought of as the oldest known fossils of microbes might actually be microscopic mineral formations not associated with life, suggesting that astrobiologists have to be careful calling alien objects ...

Mar 18, 2011 4.7 / 5 (3) 1 | with audio podcast

Radiation no concern for space crops

Flax seeds can grow in radioactive soil near the contaminated site of the Chernobyl nuclear accident without much change to their proteins, experiments show. This study may point the way to growing crops in ...

Mar 03, 2011 5 / 5 (2) 0 | with audio podcast

Beaming rockets into space

Space launches have evoked the same image for decades: bright orange flames exploding beneath a rocket as it lifts, hovers and takes off into the sky. But an alternative propulsion system proposed by some ...

Jan 21, 2011 4.8 / 5 (22) 49 | with audio podcast

Planet affects a star's spin

The discovery of a hot Jupiter exoplanet that transfers orbital momentum to its host star may hold the key to a clearer understanding of the evolution of common planetary systems, according to findings presented ...

Jan 13, 2011 4.3 / 5 (6) 4 | with audio podcast

The day the algae died

The P-T mass extinction may have been instigated by populations of algae dying. According to one group of scientists, this die-off of large numbers of relatively simple life forms caused a crash in the ocean's ...

Dec 14, 2010 4.1 / 5 (13) 8 | with audio podcast

The three ages of Mars

There is no place on Earth that is a perfect copycat of Mars as it is now, or as it was at any specific point in the past. But scientists suggest Earth has little versions of Mars as it might have been over ...

Dec 10, 2010 4.6 / 5 (7) 1 | with audio podcast