Scientists have found that increasing oxygen levels are linked to the rise of North American dinosaurs around 215 M years ago. A new technique for measuring oxygen levels in ancient rocks shows that oxygen levels in North ...
Earth Sciences
Aug 20, 2019
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205
Scientists have developed a new method for detecting traces of primordial life in ancient rock formations using potassium.
Earth Sciences
Jul 4, 2019
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1
A new radioactivity model of Earth's ancient rocks calls into question current models for the formation of Earth's continental crust, suggesting continents may have risen out of the sea much earlier than previously thought ...
Earth Sciences
Jul 1, 2019
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12
Twenty thousand years ago, in the thick of an Ice Age, Earth looked very different. Because water was locked up in glaciers hundreds of feet thick, which stretched down over Chicago and New York City, the ocean was smaller—shorelines ...
Earth Sciences
May 24, 2019
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2113
Oxygen in the form of the oxygen molecule (O2), produced by plants and vital for animals, is thankfully abundant in Earth's atmosphere and oceans. Researchers studying the history of O2 on Earth, however, know that it was ...
Earth Sciences
Feb 25, 2019
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87
Around 635 to 720 million years ago, during Earth's most severe glacial period, the Earth was twice almost completely covered by ice, according to current hypotheses. The question of how life survived these "Snowball Earth' ...
Earth Sciences
Feb 1, 2019
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187
In 2020, NASA's next rover will launch from Cape Canaveral Air Force Station in Florida and head to the Jezero Crater on Mars. Jezero was once home to an ancient lake-delta system that scientists believe may have captured ...
Space Exploration
Nov 29, 2018
1
148
A new paper recently released in Geology by researchers Jacob Mulder, Karl Karlstrom, and other Australian colleagues provides a new dataset that may resolve the more than three decades-long debate about which continents ...
Earth Sciences
Oct 29, 2018
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78
Evidence that catastrophic geological events could have created evolutionary bottlenecks that changed the course of life on Earth may be buried within ancient rocks beneath our feet.
Astronomy
Oct 16, 2018
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216
Researchers at the University of California, Riverside, have found the oldest clue yet of animal life, dating back at least 100 million years before the famous Cambrian explosion of animal fossils.
Archaeology
Oct 15, 2018
1
390
