When spacecraft and satellites travel through space they encounter tiny, fast moving particles of space dust and debris. If the particle travels fast enough, its impact appears to create electromagnetic radiation (in the ...
Plasma Physics
May 2, 2017
3
1503
One of the main health concerns of living and working in space is the long-term exposure to high levels of radiation. NASA scientists have developed a new device to monitor radiation exposure to neutrons and are testing it ...
Space Exploration
Apr 5, 2017
0
39
NASA scientists studying high-altitude radiation recently published new results on the effects of cosmic radiation in our atmosphere. Their research will help improve real-time radiation monitoring for aviation industry crew ...
Space Exploration
Jan 27, 2017
0
471
Blazars are galaxies whose central, supermassive black holes are accreting material from surrounding regions. Although black hole accretion happens in many galaxies and situations, in the case of a blazar the infalling material ...
Astronomy
Jun 6, 2016
1
57
Most of us think of that sweet smell after a storm as the aftereffect of rain that has rinsed the air of pollutants and dust. But it turns out that rain also triggers the release of a mist of particles from wet soils into ...
Earth Sciences
May 2, 2016
1
37
(Phys.org)—It has been nearly a month since, Stephen Hawking, Malcolm Perry and Andrew Strominger uploaded a paper to the arXiv preprint server that described a possible solution to the black-hole conundrum—they showed ...
An interdisciplinary team of researchers has built the first prototype of a miniature particle accelerator that uses terahertz radiation instead of radio frequency structures. A single accelerator module is just 1.5 centimetres ...
General Physics
Oct 6, 2015
0
176
Space is cold, dark, and lonely. Deadly, too, if any one of a million things goes wrong on your spaceship. It's certainly no place for a computer chip to fail, which can happen due to the abundance of radiation bombarding ...
General Physics
Sep 7, 2015
4
99
On Oct. 8, 2013, an explosion on the sun's surface sent a supersonic blast wave of solar wind out into space. This shockwave tore past Mercury and Venus, blitzing by the moon before streaming toward Earth. The shockwave struck ...
Space Exploration
Feb 18, 2015
6
1487
In a new study that sheds light on space weather's impact on Earth, Dartmouth researchers and their colleagues show for the first time that plasma waves buffeting the planet's radiation belts are responsible for scattering ...
Earth Sciences
Jan 5, 2015
0
94
