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“Origins of life”

Apr 22, 2014 02:20 PM ET // Becky Oskin, LiveScience
More than 40 years after the first Earth Day, many riddles still remain when it comes to our planet.
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.
Aug 23, 2011 06:00 PM ET // Tim Wall
The estimate also comes with a price tag for describing all these Earth species, most of which are still unknown: $364 billion.
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.
Oct 17, 2011 07:59 AM ET // Kieran Mulvaney
The ice-buried lake has been isolated from the rest of the world for perhaps a half million years. What lives in its waters?
Oct 5, 2011 02:15 PM ET // Tim Wall
Early life may have formed between a rock and a wet place.
Aug 10, 2010 03:18 PM ET // Zahra Hirji
A new theory argues that the first life on Earth got started "between the sheets" -- sheets of flaky mica minerals, that is.
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