Going, Going, Gone

Between a fifth and a quarter of all the world's plant species are endangered, critically endangered, or vulnerable to extinction.

The Widespread Threat To Everything Audio Embed: CBS Radio's Osgood File 9/29/10.

Video: MSNBC

It's A Killer Commute

Astronomers found a planet orbiting a star just 20 light-years away whose temperature is neither too cold nor too hot to harbor life. Scientists have not directly observed water there, but the planet’s mass is enough to hold onto an atmosphere and to protect liquid water on its surface.

Gliese 581-g = Goldilocks? Audio Embed: All Things Considered 9/29/10, Reporter: Joe Palca.