How did supermassive black holes form? What is dark matter? In an alternative model for how the universe came to be, as compared to the 'textbook' history of the universe, a team of astronomers propose that both of these ...
Astronomy
Dec 17, 2021
16
1552
NASA has selected a new space telescope proposal that will study the recent history of star birth, star death, and the formation of chemical elements in the Milky Way. The gamma-ray telescope, called the Compton Spectrometer ...
Astronomy
Oct 19, 2021
0
129
Massive stars end their lives in explosions called core-collapse supernovae. These explosions produce very large numbers of weakly interacting particles called neutrinos. Scientists working on the Deep Underground Neutrino ...
General Physics
Apr 19, 2021
0
79
The detection more than a decade ago by the Fermi Gamma Ray Space Telescope of an excess of high-energy radiation in the center of the Milky Way convinced some physicists that they were seeing evidence of the annihilation ...
Astronomy
Aug 26, 2020
58
384
When a massive star reaches the end of its life, it can explode in a process known as a supernova. The massive star—much more massive than our sun—runs out of fuel in its core. Gravity forces the core to collapse on itself, ...
General Physics
Aug 19, 2020
0
180
The field of astronomy has been revolutionized, thanks to the first-ever detection of gravitational waves (GWs). Since the initial detection was made in February of 2016 by scientists at the Laser Interferometer Gravitational-wave ...
Astronomy
Sep 10, 2019
4
109
A team of scientists hauled 500 kilograms of fresh snow back from Antarctica, melted it, and sifted through the particles that remained. Their analysis yielded a surprise: The snow held significant amounts of a form of iron ...
General Physics
Aug 20, 2019
6
5783
Paris officials on Tuesday downplayed the risk of lead poisoning from the massive fire that tore through Notre-Dame cathedral in April, as tests continue to show worrying levels of the toxic metal at nearby schools.
Environment
Aug 6, 2019
0
7
The search for dark matter is expanding. And going small.
General Physics
Jun 10, 2019
2
122
Almost 20 years ago, the DAMA/LIBRA experiment at Italy's Gran Sasso National Laboratory—LNGS began publishing data showing that it had detected a signal modulation produced by an interaction with the Milky Way's dark ...
Astronomy
Jan 24, 2019
54
354
