Astrobio.net

Elements of ExoPlanets

By looking at the wavelengths of light from nearby stars, researchers have determined the abundance of certain elements for more than a hundred stars. Trace elements in such stars may influence their habitable ...

Feb 02, 2012 4.9 / 5 (8) 0 | with audio podcast

Far-out photosynthesis

Photosynthesis maintains Earth's habitability for life as we know it, and shapes the way we search for habitable worlds around distant stars. Scientists have discovered a microbe that can use low-energy light ...

Mar 16, 2012 4.8 / 5 (6) 7 | with audio podcast

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

A salt-free primordial soup?

Most scientists who study the origin of life assume that it occurred in the ocean. But a minority view is that ions in seawater may interfere with prebiotic chemistry, making a freshwater environment more ...

Jan 19, 2012 3.4 / 5 (5) 0 | with audio podcast

Living in the galactic danger zone

We know for certain that life exists in the Milky Way galaxy: that life is us. Scientists are continually looking to understand more about how life on our planet came to be and the conditions that must be ...

Sep 23, 2011 4.9 / 5 (8) 12 | with audio podcast