(PhysOrg.com) -- The evolution of complex life forms may have gotten a jump start billions of years ago, when geologic events operating over millions of years caused large quantities of phosphorus to wash into the oceans. ...
Earth Sciences
May 10, 2010
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0
(PhysOrg.com) -- Analysis of a rock type found only in the world's oldest oceans has shed new light on how large animals first got a foothold on the Earth.
Earth Sciences
Sep 9, 2009
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0
(PhysOrg.com) -- Geologists may have uncovered the answer to an age-old question - an ice-age-old question, that is. It appears that Earth's earliest ice ages may have been due to the rise of oxygen in Earth's atmosphere, ...
Earth Sciences
May 7, 2009
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2
(PhysOrg.com) -- The Earth's original atmosphere held very little oxygen. This began to change around 2.4 billion years ago when oxygen levels increased dramatically during what scientists call the "Great Oxidation Event." ...
Earth Sciences
Apr 8, 2009
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0
Red jasper cored from layers 3.46 billion years old suggests that not only did the oceans contain abundant oxygen then, but that the atmosphere was as oxygen rich as it is today, according to geologists.
Earth Sciences
Mar 24, 2009
1
0
A research team from the Center of Applied Space Technology and Microgravity (ZARM) at the University of Bremen has investigated the risk of fire on spacecraft in a recent study. The results show that fires on planned exploration ...
Space Exploration
Jul 16, 2024
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1
An unusual reduction in the strength of Earth's magnetic field between 591 and 565 million years ago coincided with a significant increase in the oxygen levels in the atmosphere and oceans, according to a paper published ...
Earth Sciences
May 2, 2024
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Alice Spring's Finke River (Larapinta), often cited as one of the oldest rivers in the world, once hosted waters teeming with bizarre animals—including a sleek predatory lobe-finned fish with large fangs and bony scales.
Paleontology & Fossils
Feb 6, 2024
0
162
In the quest to understand the potential for life beyond Earth, researchers are widening their search to encompass not only biological markers, but also technological ones. While astrobiologists have long recognized the importance ...
Astrobiology
Jan 2, 2024
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119
A scientific team led by researchers from the Laboratory for Planetary and Atmospheric Physics (LPAP) at the University of Liège (BE) has just observed, for the first time, lights in the night sky over Mars using the UVIS-NOMAD ...
Astronomy
Nov 9, 2023
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