For decades, researchers assumed the cosmic rays that regularly bombard Earth from the far reaches of the galaxy are born when stars go supernova—when they grow too massive to support the fusion occurring at their cores ...
Astronomy
Mar 11, 2021
2
1073
IFIC researcher Francisco Salesa Greus, along with other members of the HAWC collaboration, have detected very high-energy photons from a galactic source that could produce cosmic rays. The detection of neutrinos through ...
Astronomy
Feb 22, 2021
1
323
With the Cherenkov Telescope Array (CTA) that is currently under construction, researchers hope to observe highly energetic gamma rays that could lead to the discovery of new objects in and outside of our galaxy and even ...
Astronomy
Aug 24, 2020
0
467
This weekend sees the 45th anniversary of the launch of Cos-B, the first satellite to be launched under the banner of the newly created European Space Agency, on 9 August 1975.
Space Exploration
Aug 7, 2020
0
13
An international collaboration bringing together over 200 scientists from 13 countries has shown that the very high-energy gamma-ray emissions from quasars, galaxies with a highly energetic nucleus, are not concentrated in ...
Astronomy
Jun 17, 2020
13
253
NASA has selected proposals for four missions that would study cosmic explosions and the debris they leave behind, as well as monitor how nearby stellar flares may affect the atmospheres of orbiting planets.
Space Exploration
Mar 17, 2020
0
244
For over a century, scientists have been observing very high-energy charged particles called cosmic rays arriving from outside Earth's atmosphere. The origins of these particles are very difficult to pinpoint because the ...
General Physics
Feb 17, 2020
0
135
Astrophysicists have come a step closer to understanding the origin of a faint glow of gamma rays covering the night sky. They found that this light is brighter in regions that contain a lot of matter and dimmer where matter ...
General Physics
Jan 14, 2020
35
525
Nine sources of extremely high-energy gamma rays comprise a new catalog compiled by researchers with the High-Altitude Water Cherenkov (HAWC) Gamma-Ray Observatory. All produce gamma rays with energies over 56 trillion electron ...
General Physics
Jan 14, 2020
0
578
NASA's Fermi Gamma-ray Space Telescope has discovered a faint but sprawling glow of high-energy light around a nearby pulsar. If visible to the human eye, this gamma-ray "halo" would appear about 40 times bigger in the sky ...
Astronomy
Dec 19, 2019
4
681
