Space may seem empty, but it's actually a dynamic place populated with near-invisible matter, and dominated by forces, in particular those created by magnetic fields. Magnetospheres—the magnetic fields around most planets—exist ...
Space Exploration
Nov 1, 2017
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Our Cold War history is now offering scientists a chance to better understand the complex space system that surrounds us. Space weather—which can include changes in Earth's magnetic environment—are usually triggered by ...
Space Exploration
May 17, 2017
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62
Our planet is nestled in the center of two immense, concentric doughnuts of powerful radiation: the Van Allen radiation belts, which harbor swarms of charged particles that are trapped by Earth's magnetic field. On March ...
Space Exploration
Aug 15, 2016
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860
The radiation belts of Earth and Saturn differ more strongly than previously assumed. In these belts, very energetic particles, such as electrons and protons, move around the planet at high velocities - captured by its magnetic ...
Space Exploration
Oct 30, 2017
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517
The first science experiments that will be hosted on the Gateway, the international research outpost orbiting the moon, have been selected by ESA and NASA. Europe's contribution will monitor radiation to gain a complete understanding ...
Space Exploration
Mar 13, 2020
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(PhysOrg.com) -- When scientists discovered two great swaths of radiation encircling Earth in the 1950s, it spawned over-the-top fears about "killer electrons" and space radiation effects on Earthlings. The fears were soon ...
Space Exploration
Jan 31, 2012
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0
Scientists using NASA's fleet of THEMIS spacecraft have discovered how radio waves produced by electrons injected into Earth's near-space environment both generate and remove high-speed "killer" electrons.
General Physics
May 7, 2009
6
0
Researchers from the University of New Hampshire have captured unique measurements of the Van Allen radiation belts, which circle the Earth, during an extremely rare solar wind event. The findings, which have never been reported ...
Space Exploration
Oct 11, 2016
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0
The underlying physical process that creates striking "breaking wave" cloud patterns in our atmosphere also frequently opens the gates to high-energy solar wind plasma that perturbs Earth's magnetic field, or magnetosphere, ...
Space Exploration
May 11, 2015
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The Earth's magnetic field traps high-energy particles. When the first satellites were launched into space, scientists led by James Van Allen unexpectedly discovered the high-energy particle radiation regions, which were ...
Astronomy
Sep 10, 2020
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