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“Early Earth”

Nov 14, 2013 09:00 AM ET // Larry O'Hanlon
The story of how life changed the face of the Earth may be more profound than previously envisioned and could lead to new clues for detecting life on exoplanets.
Nov 12, 2013 10:00 AM ET // Katia Moskvitch,
A new hypothesis gives the moon credit for cooling a hot, early Earth to the temperatures necessary for life to evolve.
Oct 15, 2013 06:40 AM ET // Larry O'Hanlon
One geologist thinks Earth has been banged up a bit more than previously thought -- never allowing the 'Snowball Earth' global ice age to develop.
Sep 26, 2013 06:15 AM ET // Charles Choi, LiveScience
Oxygen may have filled Earth's atmosphere hundreds of millions of years earlier than previously thought.
Jun 26, 2011 04:19 PM ET // John D. Cox
Modern climate models fail to reproduce rapid climate changes in the past and so are unable to accurately project the future.
Dec 17, 2010 02:23 PM ET // John D. Cox
Digging into the details, researchers are concluding that the greatest volcanic eruption of the last 2 million years was not as catastrophic for early modern humans as they used to think.
Dec 2, 2010 01:12 PM ET // Christina Reed
Manipulating microbes shows need to redefine life on Earth, again.
Nov 24, 2011 01:31 PM ET // Kieran Mulvaney
Lynn Margulis died on Nov. 22, age 73, succumbing to the fate that will eventually meet us all, the inevitable conclusion of a train of events that, as she identified, was set in motion billions of years ago.
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