Investigating the history of our cosmos with a large sample of distant 'active' galaxies observed by ESA's XMM-Newton, a team of astronomers found there might be more to the early expansion of the universe than predicted ...
Astronomy
Jan 29, 2019
69
1071
Astronomers have recently conducted photometric and spectroscopic observations of SN 2018byg, a peculiar Type Ia supernova. Results of these observations, presented in a paper published January 3 on the arXiv pre-print server, ...
Many stars explode as luminous supernovae when, swollen with age, they run out of fuel for nuclear fusion. But some stars can go supernova simply because they have a close and pesky companion star that, one day, perturbs ...
Astronomy
Jan 10, 2019
3
341
Astrophysicists have found the first ever evidence of gigantic remains being formed from repeated explosions on the surface of a dead star in the Andromeda Galaxy, 2.5 million light years from Earth. The remains or "super-remnant" ...
Astronomy
Jan 9, 2019
2
230
New work from the Carnegie Supernova Project provides the best-yet calibrations for using type Ia supernovae to measure cosmic distances, which has implications for our understanding of how fast the universe is expanding ...
Astronomy
Dec 11, 2018
0
119
A supernova discovered by an international group of astronomers has provided an unprecedented look at the first moments of a violent stellar explosion. The team, led by the University of Hawaiʻi (UH) Institute for Astronomy's ...
Astronomy
Nov 30, 2018
198
212
Researchers from the University of Portsmouth have come up with a new measurement of one of the most debated topics in cosmology.
Astronomy
Nov 13, 2018
22
27
Researchers have found white dwarf stars with masses close to the maximum stable mass (called the Chandrasekhar mass) are likely to produce large amounts of manganese, iron, and nickel after they orbit another star and explode ...
Astronomy
Sep 27, 2018
8
244
New efforts to figure out just how fast the universe has expanded since the Big Bang, a speed known as the Hubble constant, could upend current theories of physics, according to some scientists.
Astronomy
Sep 26, 2018
6
64
Astronomer Ed Shaya was in his office looking at data from NASA's Kepler space telescope in 2012 when he noticed something unusual: The light from a galaxy had quickly brightened by 10 percent. The sudden bump in light got ...
Astronomy
Mar 27, 2018
0
30
