(Phys.org) —A trio of planetary scientists from France, Switzerland and the U.K. has used seismic data, lab experiment results and theoretical calculations as a means to offer proof that oxygen is present in the Earth's ...
How do you explore the interior of a planet without ever touching down on it? Start by watching the way the planet spins, then measure how your spacecraft orbits it—very, very carefully. This is exactly what NASA planetary ...
Space Exploration
Apr 17, 2019
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Annual to decadal changes in the earth's magnetic field in a region that stretches from the Atlantic to the Indian Ocean have a close relationship with variations of gravity in this area. From this it can be concluded that ...
Earth Sciences
Oct 22, 2012
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(PhysOrg.com) -- "Terra firma." It's Latin for "solid Earth." Most of the time, at least from our perspective here on the ground, Earth seems to be just that: solid. Yet the Earth beneath our feet is actually in constant ...
Earth Sciences
Dec 28, 2009
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Researchers in Japan say they may be one step closer to solving a mystery at the core of the Earth. It has long been established that approximately 85 percent of the Earth's core is made of iron, while nickel makes up an ...
Earth Sciences
Feb 1, 2017
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On a time scale of tens to hundreds of millions of years, the geomagnetic field may be influenced by currents in the mantle. The frequent polarity reversals of Earth's magnetic field can also be connected with processes in ...
Earth Sciences
Jul 29, 2012
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(PhysOrg.com) -- The latest evidence of the dominant role humans play in changing Earth's climate comes not from observations of Earth's ocean, atmosphere or land surface, but from deep within its molten core.
Earth Sciences
Mar 10, 2011
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When the Apollo astronauts returned to Earth, they came bearing 380.96 kilograms (839.87 lb) of moon rocks. From the study of these samples, scientists learned a great deal about the moon's composition, as well as its history ...
Space Exploration
Apr 17, 2017
0
59
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, ...
Earth's core, the deepest part of our planet, is characterized by extremely high pressure and temperature. It is composed of a liquid outer core and solid inner core.
Planetary Sciences
Feb 9, 2022
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