Astrobio.net

How abundant are Super-Earths?

Our solar system hosts a cornucopia of worlds, from the hellfire of Venus to the frozen plains of Mars to the mighty winds of Uranus. In that range, the Earth stands alone, with no planet coming close to ...

Dec 03, 2013 4 / 5 (10) 3 | with audio podcast

Astro-virology

In HG Wells' 'The War of the Worlds', the invading Martians were beaten by that most unassuming of combatants – the common cold. Could the reverse happen and alien viruses pose a threat to human astronauts ...

Nov 29, 2013 4.4 / 5 (8) 1 | with audio podcast

When tectonics killed everything

A new paper reveals how the worst extinction in Earth's history may have been tied to the formation of Supercontinent Pangea. The catastrophe wasn't triggered by an impact from above—unlike another well-known ...

Nov 25, 2013 3.9 / 5 (29) 8 | with audio podcast

The overprotection of Mars?

A recent commentary paper published in the journal Nature Geoscience argues that planetary protection policies and practices designed to guard solar system bodies from biological contamination from spacec ...

Nov 19, 2013 4.4 / 5 (17) 16 | with audio podcast

A microbe's fountain of youth

The yeast S.pombe is one of the best-studied microbes in the world. First isolated from East African millet beer over a century ago, it's been used as a model organism in molecular and cell biology for the ...

Oct 04, 2013 5 / 5 (2) 1 | with audio podcast

Did autocells lead to life?

The origin of life on Earth is still a hotly-debated topic. There are many different theories on how life was kick-started, as well as various experiments underway attempting to understand the processes involved. ...

Sep 25, 2013 4.8 / 5 (26) 37 | with audio podcast