Astronomers comparing data from an ongoing major survey of the sky using the National Science Foundation's Karl G. Jansky Very Large Array (VLA) to data from earlier surveys likely have made the first discovery of the afterglow ...
Astronomy
Oct 4, 2018
0
132
The night sky seems serene, but telescopes tell us that the universe is filled with collisions and explosions. Distant, violent events signal their presence by spewing light and particles in all directions. When these messengers ...
Astronomy
Oct 3, 2018
11
803
The explosions of stars, known as supernovae, can be so bright they outshine their host galaxies. They take months or years to fade away, and sometimes, the gaseous remains of the explosion slam into hydrogen-rich gas and ...
Astronomy
Sep 12, 2018
5
330
Precise measurement using a continent-wide collection of National Science Foundation (NSF) radio telescopes has revealed that a narrow jet of particles moving at nearly the speed of light broke out into interstellar space ...
Astronomy
Sep 5, 2018
11
328
Astronomers have detected transient rhythmic oscillations in the gamma-ray emission from the blazar Markarian 501. The discovery, reported in a paper published August 18 on the arXiv pre-print server could be helpful in improving ...
Nuclear emergency teams, safeguards specialists and others may one day benefit from an expanded nuclear fission chain theory and detectors developed by a team of Lawrence Livermore National Laboratory (LLNL) physicists.
General Physics
Aug 23, 2018
0
8
Imagine if the color camera had never been invented and all our images were in black and white. The world would still look beautiful, but incomplete. For thousands of years, that was how humans saw the universe. On Earth, ...
Astronomy
Aug 21, 2018
0
15
Cosmic gamma rays can provide us with important insights into high-energy phenomena in our universe. The GRAINE (Gamma-Ray Astro-Imager with Nuclear Emulsion) collaboration aims to record high-energy cosmic gamma rays at ...
Astronomy
Aug 8, 2018
0
8
Protons might be the Large Hadron Collider's bread and butter, but that doesn't mean it can't crave more exotic tastes from time to time. On Wednesday, 25 July, for the very first time, operators injected not just atomic ...
General Physics
Jul 30, 2018
0
27
In the blink of an eye, a massive star more than 2 billion light-years away lost a million-year-long fight against gravity and collapsed, triggering a supernova and forming a black hole at its center.
Astronomy
Jul 26, 2018
0
93
