Molecular clock dates for the first animals to walk the Earth don't match the fossil record. Comparing the disparate DNA of two different species and extrapolating how long it would take for them to mutate from a common ancestor ...
Nearly 1,800 miles below the earth's surface, there are large odd structures lurking at the base of the mantle, sitting just above the core. The mantle is a thick layer of hot, mostly plastic rock that surrounds the core; ...
Earth Sciences
Sep 21, 2018
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103
Nearly 6,000 different minerals are known to exist on Earth, but after more than 50 years of investigations, only 161 minerals have been recorded on Mars—a dramatically lower number for a planet that shares much in common ...
Planetary Sciences
Sep 7, 2023
0
109
(PhysOrg.com) -- Robert Ixer and Richard Bevins, British geologists, after nine months of tedious research, have pinpointed the place from which some of the stones that make up Stonehenge were quarried. The stones in question, ...
(Phys.org)—One of the biggest and most important findings made by NASA recently was the confirmation that liquid water currently flows on Mars. Scientists suspected this a long time ago, but really strong evidence was needed ...
After lightning struck a tree in a New Port Richey neighborhood, a University of South Florida professor discovered the strike led to the formation of a new phosphorus material. It was found in a rock—the first time in ...
Earth Sciences
Apr 11, 2023
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343
For many hundreds of millions of years, the average temperature at the surface of the Earth has varied by not much more than 20° Celsius, facilitating life on our planet. To maintain such stable temperatures, Earth must ...
Earth Sciences
Mar 7, 2024
0
231
The growing demand for minerals and metals to build the electric vehicles, solar arrays, wind turbines and other renewable energy infrastructure necessary to meet the ambitious goals of the Paris Climate Agreement could outstrip ...
Energy & Green Tech
Apr 18, 2019
0
21
(PhysOrg.com) -- Jennifer Smith, PhD, associate professor of earth and planetary sciences in Arts & Sciences at Washington University in St. Louis, was belly crawling her way to the end of a long, narrow tunnel carved in ...
Archaeology
Mar 17, 2010
1
0
A team of European researchers discovered a new high-pressure mineral in a lunar meteorite which is helping to explain what happens to materials within the extreme pressures of the Earth's mantle.
Earth Sciences
Nov 2, 2020
0
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