Missing chromium is clue to planet formation
Early in the formation of the Earth, some forms of the element chromium separated and disappeared deep into the planet's core, a new study by UC Davis geologists shows.
Earth Sciences
Feb 24, 2011
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Page 24 - News tagged with early earth
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Tiny 3-D images shed light on origin of Earth's core
(PhysOrg.com) -- A new method of capturing detailed, three-dimensional images of minute samples of material under extreme pressures is shedding light on the evolution of the Earth's interior. Early results suggest that the ...
General Physics
Dec 16, 2010
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Five things about NASA's EPOXI mission
(PhysOrg.com) -- Here are five quick facts about the EPOXI mission, scheduled to fly by comet Hartley 2 on Nov. 4, 2010.
Space Exploration
Oct 25, 2010
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Ancient blob-like creature of the deep revealed by scientists
(PhysOrg.com) -- A unique blob-like creature that lived in the ocean approximately 425 million years ago is revealed in a 3D computer model in research published today in the journal Biology Letters. The model is helping ...
Archaeology
Aug 4, 2010
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Early Earth haze likely provided ultraviolet shield for planet
A new study shows a thick organic haze that enshrouded early Earth several billion years ago may have been similar to the haze now hovering above Saturn's largest moon, Titan, and would have protected primordial life on the ...
Earth Sciences
Jun 3, 2010
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Researcher unravels one of geology's great mysteries
Danish researcher has solved one of the great mysteries of our geological past: Why the Earth's surface was not one big lump of ice four billion years ago when sun radiation was much weaker than today. Scientists have presumed ...
Earth Sciences
Mar 31, 2010
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Early warning system would predict space storms on Mars
Space weather storms will make living on Mars challenging. The first group of colonists won't need umbrellas; they will need safe houses with 30-foot thick walls made of Martian clay that can withstand radiation storms.
Space Exploration
Mar 29, 2010
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Study reveals ancient rocks linked to old Earth's crust
(PhysOrg.com) -- A new geological study which took place in the Pilbara region of Western Australia brings us one step closer to understanding more precisely the timing of when the primordial earth crust was formed and its ...
Earth Sciences
Feb 24, 2010
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Professor: We have a 'moral obligation' to seed universe with life
(PhysOrg.com) -- Eventually, the day will come when life on Earth ends. Whether that’s tomorrow or five billion years from now, whether by nuclear war, climate change, or the Sun burning up its fuel, the last living cell ...
Ancient ocean chemistry: Effects of biological oxygen production 100 million years before it accumulated in atmosphere
(PhysOrg.com) -- Scientists widely accept that around 2.4 billion years ago, the Earth's atmosphere underwent a dramatic change when oxygen levels rose sharply. Called the "Great Oxidation Event" (GOE), the oxygen spike marks ...
Earth Sciences
Oct 29, 2009
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