Three times further away from the sun than the Earth lies an enormous lump of metal. Around 252km in diameter, the metallic "M-class" asteroid 16 Psyche is the target of NASA's next mission to the belt of giant rocks that ...
Space Exploration
Dec 4, 2017
9
20
(PhysOrg.com) -- Identifying the composition of the earth's core is key to understanding how our planet formed and the current behavior of its interior. While it has been known for many years that iron is the main element ...
Earth Sciences
Dec 20, 2011
7
0
The iron in the Earth's inner core weakens dramatically before it melts, explaining the unusual properties that exist in the moon-sized solid centre of our planet that have, up until now, been difficult to understand.
Earth Sciences
Oct 10, 2013
0
0
A geomagnetic field is generated in Earth's interior and extends into outer space to protect Earth from cosmic radiation and the charged particles of solar wind. The magnetic field is generated by the convection of charged ...
Planetary Sciences
Mar 31, 2023
0
114
What came first: the bipedal human ancestor or the grassland encroaching on the forest? A new analysis of the past 12 million years' of vegetation change in the cradle of humanity is challenging long-held beliefs about the ...
Earth Sciences
Jan 31, 2013
1
0
The massive ball of iron sitting at the center of Earth is not quite as "rock-solid" as has been thought, say two Stanford mineral physicists. By conducting experiments that simulate the immense pressures deep in the planet's ...
Earth Sciences
May 17, 2013
4
0
(PhysOrg.com) -- Once a day, Miaki Ishii rides the Earth tide, rising slowly — along with her desk, chair, and entire office — 20 to 30 centimeters before sinking back again.
Earth Sciences
Jan 29, 2009
2
0
Old rocks hold on to their secrets. Now, a geophysicist at Michigan Technological University has unlocked clues trapped in the magnetic signatures of mineral grains in those rocks.. These clues will help clear up the murky ...
Earth Sciences
Jun 4, 2015
3
41
Researchers at Sandia National Laboratories' Z machine have helped untangle a long-standing mystery of astrophysics: why iron is found spattered throughout Earth's mantle, the roughly 2,000-mile thick region between Earth's ...
Earth Sciences
Mar 18, 2015
0
12
Researchers from The Australian National University (ANU) are unlocking some of the secrets of the Earth's inner core by adapting and further developing a technique used in hospitals around the world.
Earth Sciences
Mar 13, 2019
0
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