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May 12, 2014 06:15 PM ET // Charles Choi, LiveScience
Fossil matter proves that the Earth cooled suddenly after an asteroid impact thought responsible for killing the dinosaurs.
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 21, 2013 03:00 PM ET // Christina Reed
Earth-viewing satellites captured key details of the Chelyabinsk meteor event in Russia. Continue reading →
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.
Dec 13, 2012 03:00 AM ET
Asteroid Dust To Fight Climate Change on Earth?