Biofuel waste product recycled for electricity

A by-product of biofuel manufacture can power microbial fuel cells to generate electricity cheaply and efficiently, according to scientists presenting their work at the Society for General Microbiology's Autumn Conference. ...

Scientists offer new theory for largest known mass extinction

The largest mass extinction in the history of the earth could have been triggered off by giant salt lakes, whose emissions of halogenated gases changed the atmospheric composition so dramatically that vegetation was irretrievably ...

Ancient cracked mud found on Mars

A recent study published in Nature examines how mud cracks observed on Mars by NASA's Curiosity rover could provide insight into how life on the red planet could have formed in its ancient past.

page 4 from 6