In our continuing search for other life in the universe, one place has always looked promising—Mars. It is a rocky planet like Earth, orbiting the same star, and at a distance where water could have been present on the ...
Space Exploration
Jul 3, 2020
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182
(Phys.org)—Researchers at Western University have discovered where the equator was "precisely located" 450 million years ago, which is an important breakthrough for paleontologists and planetary scientists, as well as private ...
Earth Sciences
Dec 17, 2012
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1
Tiny meteorites no larger than grains of sand hold new clues about the atmosphere on ancient Earth, according to scientists.
Earth Sciences
Jan 30, 2020
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794
The Martian volcano Olympus Mons is about three times the height of Mount Everest, but it's the small details that Rice University professors Patrick McGovern and Julia Morgan are looking at in thinking about whether the ...
Space Exploration
Mar 4, 2009
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0
Today's atmosphere likely bears little trace of its primordial self: Geochemical evidence suggests that Earth's atmosphere may have been completely obliterated at least twice since its formation more than 4 billion years ...
Space Exploration
Dec 2, 2014
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We know little about Earth's surface temperatures for the first 4 billion years or so of its history. This presents a limitation into research of life's origins on Earth and also how it might arise on distant worlds as well.
Earth Sciences
Jun 1, 2017
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174
Once upon a time, seasons in Gale Crater probably felt something like those in Iceland. But nobody was there to bundle up more than 3 billion years ago.
Astronomy
Jan 21, 2021
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139
A quartet of researchers from the University of Rochester and the University of California has found evidence of the starting period for the solidification of Earth's core. In their paper published in the journal Nature Geoscience, ...
Stromatolites are the most ancient fossils on Earth, and these structures built by microbes can still be found forming today in various places around the globe. Although they provide a straight line of life’s history ...
Earth Sciences
Oct 5, 2010
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0
Earth is currently the only planet known to harbor life—thanks in large part due to the operation of plate tectonics, which cycles critical biogeochemical elements and maintains a planetary thermostat. Subduction—the ...
Earth Sciences
Jul 5, 2023
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