News tagged with early earth
Related topics: earth
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 ...
Space & Earth / Earth Sciences
Feb 24, 2010 |
4.9 / 5 (8) |
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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 ...
Feb 09, 2010 |
3.1 / 5 (49) |
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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 ...
Space & Earth / Earth Sciences
Oct 29, 2009 |
4.7 / 5 (15) |
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A Hazy View of Early Earth
Haze in the early Earth atmosphere could have played a crucial role in the origin of life. By forming a protective shield, the haze would have safeguarded organic substances from harmful ultraviolet (UV) radiation. ...
Space & Earth / Earth Sciences
Oct 12, 2009 |
4.3 / 5 (4) |
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Banded rocks reveal early Earth conditions, changes
(PhysOrg.com) -- The strikingly banded rocks scattered across the upper Midwest and elsewhere throughout the world are actually ambassadors from the past, offering clues to the environment of the early Earth ...
Space & Earth / Earth Sciences
Oct 11, 2009 |
4.5 / 5 (17) |
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Scientists propose new hypothesis on the origin of life
The Miller-Urey experiment, conducted by chemists Stanley Miller and Harold Urey in 1953, is the classic experiment on the origin of life. It established that the early Earth atmosphere, as they pictured it, ...
Space & Earth / Earth Sciences
Sep 04, 2009 |
4.7 / 5 (42) |
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Brine-Loving Microbes Reveal Secrets to Success in Chemically Extreme Environments
(PhysOrg.com) -- Scientists have completed the first study of microbes that live within the plumbing of deep-sea mud volcanoes in the Gulf of Mexico, where conditions may resemble those in extraterrestrial ...
Apr 06, 2009 |
4.8 / 5 (4) |
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