Astrobio.net

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

Breaking Antarctica's ice

Over the course of the past decade, NASA spacecraft have identified several sites on Mars where conditions capable of supporting life existed in the past. One of the most promising of these sites, and a good ...

Nov 16, 2010 4.7 / 5 (9) 1 | with audio podcast

The climate change debate: Man versus nature

The public discussion on climate change has become so polarized that some scientists don’t even acknowledge there is a debate. Climate scientist at NASA’s Goddard Institute for Space Studies, Gavin ...

Oct 03, 2011 2.8 / 5 (9) 40

SETI on the SKA

Can the Square Kilometer Array - a network of thousands of radio antennas to be based in South Africa and Australia -- be used to hunt for extraterrestrial signals?

Jun 26, 2012 5 / 5 (3) 4

The public debate on climate change

Even after years of scientific research that points to how human activity is causing climate change, pundits, policymakers and the general public are still debating the issue.

Oct 17, 2011 3 / 5 (11) 142