All Items Tagged

“Cosmic Impacts”

Jan 29, 2016 04:43 PM ET // Irene Klotz
The Mars-sized object that hit baby Earth some 4.5 billion years ago, creating plumes of debris that eventually coalesced into the moon, was a head-on strike.
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.
Oct 10, 2013 05:00 AM ET // Mike Wall,
A team of scientists claims to have found the first-ever definitive evidence of a comet striking Earth.
Apr 1, 2010 06:29 PM ET // Michael Reilly
If a new theory is right, pieces of a comet that struck Earth 13,000 years ago might be coming around for another pass.
Jun 10, 2010 12:30 PM ET // Michael Reilly
Large asteroid impacts on Earth could send seismic shock waves deep into the planet, causing super volcanic eruptions that helped wipe out the dinosaurs.
Jun 16, 2010 11:40 PM ET // Cristen Conger
Crater formation is a a mysterious science, and one we won't get a good handle on until man returns to the pripristine craters of thelunar landscape.
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