Meet the scientists who have been charged with deciding whether humans have been so harmful to the Earth that we've kicked off a new geologic age.
Astrobiologist David Grinspoon says Venus used to be a lot like Earth, but then this little thing called the greenhouse effect turned it into a scorched, uninhabitable wasteland. Worried yet?
One of the Mars rover’s smart guys, Ken Herkenhoff, tells all about the “seven minutes of terror,” possible “touchdown” discoveries, and why the folks at Mission Control call Curiosity “she.”
Geophysicist Mark Zoback says natural gas squeezed from shale can be a crucial and clean(ish) short-term energy fix -- if we’re careful about how we get it.
Everything you need to know about the Age of Man in just five – OK, seven, minutes.
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