Strange ribbons of purple light that appeared in the sky—known as Steve—became the subject of debate in 2017, as their origins were unbeknown to scientists. Now, photographs of this remarkable phenomena have been studied ...
Earth Sciences
Nov 29, 2019
4
744
The celestial phenomenon known as STEVE is likely caused by a combination of heating of charged particles in the atmosphere and energetic electrons like those that power the aurora, according to new research. In a new study, ...
Earth Sciences
Apr 25, 2019
2
496
Researchers have investigated wave-particle interactions between energetic electrons and chorus waves evolving in the space surrounding the Earth using the scientific satellite Arase and, simultaneously, transient auroral ...
General Physics
Feb 5, 2019
0
133
Scientists found that relatively slow electrons are produced when intense lasers interact with small clusters of atoms, upturning current theories.
General Physics
Aug 9, 2018
0
130
Theoretical physicists used simulations to explain the unusual readings collected in 2009 by the Mercury Surface, Space Environment, Geochemistry, and Ranging (MESSENGER) mission. The origin of energetic electrons detected ...
Plasma Physics
Apr 17, 2018
26
315
Solar and renewable energy is getting hot, thanks to nanoscientists—those who work with materials smaller than the width of a human hair—at the U.S. Department of Energy's (DOE) Argonne National Laboratory who have discovered ...
General Physics
Dec 21, 2017
0
127
A 60-year-old mystery regarding the source of some energetic and potentially damaging particles in Earth's radiation belts is now solved using data from a shoebox-sized satellite built and operated by University of Colorado ...
Space Exploration
Dec 13, 2017
0
954
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
An exotic interaction between light and metal can be harnessed to make chemical reactions more sustainable, but the physics behind it has been widely debated in the field.
Nanophysics
Jul 18, 2017
0
21
Earth's radiation belts, two doughnut-shaped regions of charged particles encircling our planet, were discovered more than 50 years ago, but their behavior is still not completely understood. Now, new observations from NASA's ...
Space Exploration
Mar 15, 2017
1
39
