What if some of the antimatter that was thought to have disappeared was hiding in the form of anti-stars? Researchers from the Institute for Research in Astrophysics and Planetology (IRAP—CNRS/CNES/UT3 Paul Sabatier) are ...
Astronomy
Apr 29, 2021
3
1966
General relativity, Einstein's theory of gravity, is best tested at its most extreme—close to the event horizon of a black hole. This regime is accessible through observations of shadows of supermassive black holes and ...
General Physics
Apr 20, 2021
1
1328
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
Ultralight bosons are hypothetical particles whose mass is predicted to be less than a billionth the mass of an electron. They interact relatively little with their surroundings and have thus far eluded searches to confirm ...
General Physics
Apr 14, 2021
11
660
In the recent past, space missions dedicated to the study of astrophysical signals in the high-energy spectrum revealed a series of enigmatic excesses not predicted by the theoretical models. In order to find an explanation ...
Astronomy
Mar 29, 2021
45
1396
A paper by the Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU) Director Ooguri Hirosi and Project Researcher Matthew Dodelson on the string theoretical effects outside the black hole photon sphere ...
Optics & Photonics
Mar 29, 2021
6
3622
The very first moments of the Universe can be reconstructed mathematically even though they cannot be observed directly. Physicists from the Universities of Göttingen and Auckland (New Zealand) have greatly improved the ...
Astronomy
Mar 25, 2021
4
8321
Astronomers have played a game of guess-the-numbers with cosmological implications. Working from a mock catalog of galaxies prepared by a Japanese team, two American teams correctly guessed the cosmological parameters used ...
Astronomy
Mar 19, 2021
0
2594
Researchers have channeled the universe's earliest light—a relic of the universe's formation known as the cosmic microwave background (CMB)—to solve a missing-matter mystery and learn new things about galaxy formation. ...
Astronomy
Mar 17, 2021
46
728
Using light from the Big Bang, an international team led by Cornell University and the U.S. Department of Energy's Lawrence Berkeley National Laboratory has begun to unveil the material which fuels galaxy formation.
Astronomy
Mar 16, 2021
2
1251
