Listening to electromagnetic waves around the Earth, converted to sound, is almost like listening to singing and chirping birds at dawn with a crackling campfire nearby. Such waves are therefore called chorus waves. They ...
Space Exploration
Aug 7, 2018
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309
New research from NASA's Cassini spacecraft's up-close Grand Finale orbits shows a surprisingly powerful and dynamic interaction of plasma waves moving from Saturn to its rings and its moon Enceladus. The observations show ...
Space Exploration
Jul 10, 2018
35
938
Encircling Earth are two enormous rings—called the Van Allen radiation belts—of highly energized ions and electrons. Various processes can accelerate these particles to relativistic speeds, which endanger spacecraft unlucky ...
Space Exploration
May 29, 2018
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233
A doctoral student at the University of Cambridge has come up with a possible explanation for the westward drift of the Earth's magnetic field. In his paper published in Proceedings of the Royal Society A, O.P. Bardsley suggests ...
The movement of thousands of electrons underlies electronics. Yet, ubiquitous as electrons are, the particulars of their behavior continue to stump physicists. One phenomenon has proven especially puzzling: how electrons ...
General Physics
Apr 10, 2018
0
34
Scientists at Queen's University Belfast have led an international team to the ground-breaking discovery that magnetic waves crashing through the sun may be key to heating its atmosphere and propelling the solar wind.
General Physics
Mar 6, 2018
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Illinois researchers have demonstrated that sound waves can be used to produce ultraminiature optical diodes that are tiny enough to fit onto a computer chip. These devices, called optical isolators, may help solve major ...
Optics & Photonics
Jan 22, 2018
0
210
An international group of astronomers has found that the Cornell University-discovered fast radio burst FRB 121102 - a brief, gigantic pulse of radio waves from 3 billion light years away - passes through a veil of magnetized ...
Astronomy
Jan 10, 2018
1
141
Nuclear magnetic resonance (NMR) is a powerful scientific tool used in medical imaging and in probing the chemical structure of molecules and compounds. New research from Brown University shows a technique that helps adapt ...
General Physics
Dec 19, 2017
0
158
Scientists have long known that solar-energized particles trapped around the planet are sometimes scattered into Earth's upper atmosphere where they can contribute to beautiful auroral displays. Yet for decades, no one has ...
Space Exploration
Nov 15, 2017
10
39
