By creating conditions akin to the center of the Earth inside a laboratory chamber, researchers have improved the estimate of the age of our planet's solid inner core, putting it at 1 billion to 1.3 billion years old.
Earth Sciences
Aug 21, 2020
0
570
If you could travel back in time 41,000 years to the last ice age, your compass would point south instead of north. That's because for a period of a few hundred years, the Earth's magnetic field was reversed. These reversals ...
Earth Sciences
May 16, 2017
5
177
Some three thousand kilometers below the surface of the Earth and with temperatures reaching those at the surface of the sun, the core of our home planet is no more within our physical reach today than it was back when Jules ...
Space Exploration
Nov 25, 2010
4
1
(PhysOrg.com) -- A University of California, Berkeley, geophysicist has made the first-ever measurement of the strength of the magnetic field inside Earth's core, 1,800 miles underground.
Earth Sciences
Dec 16, 2010
10
0
(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 ...
Nineteen million years ago, during a time known as the early Miocene, massive ice sheets in Antarctica rapidly and repeatedly grew and receded. The Miocene is widely considered a potential analog for Earth's climate in the ...
Earth Sciences
Nov 29, 2023
0
115
(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
29
0
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
0
48
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
6
103
Where did the materials that make up the Earth and moon come from—and when did they arrive?
Space Exploration
Jan 26, 2017
5
264
