(PhysOrg.com) -- An unusual supernova rediscovered in seven-year-old data may be the first example of a new type of exploding star, possibly from a binary star system where helium flows from one white dwarf onto another and ...
Astronomy
Nov 5, 2009
6
0
(PhysOrg.com) -- Several ways have been proposed to examine dark energy, in hopes of finding out just what it is. One of them, "supernovae" for short, certainly works: it's how dark energy was discovered in the first place. ...
General Physics
Aug 7, 2009
13
0
(PhysOrg.com) -- A new technique for measuring the distances to supernovae more accurately than ever before has been developed by a team of scientists from Yale University, Lawrence Berkeley National Laboratory and a consortium ...
Astronomy
May 22, 2009
8
0
The rate at which the universe is expanding, known as the Hubble constant, is one of the fundamental parameters for understanding the evolution and ultimate fate of the cosmos.
Astronomy
Mar 11, 2024
8
151
The first stars illuminated the universe during the Cosmic Dawn and put an end to the cosmic "dark ages" that followed the Big Bang. However, the distribution of their mass is one of the great unsolved mysteries of the cosmos.
Astronomy
Jun 7, 2023
0
2444
In the latest issue of the journal Nature, astronomers from Stockholm University reveal the origin of a thermonuclear supernova explosion. Strong emission lines of helium and the first detection of such a supernova in radio ...
Astronomy
May 17, 2023
0
94
Researchers led by Ph.D. candidate Zang Lei and Prof. Qian Shengbang from Yunnan Observatories of the Chinese Academy of Sciences (CAS) have discovered that the orbital period of the persistent supersoft X-ray source QR Andromeda ...
Astronomy
May 11, 2023
0
132
When Edwin Hubble observed distant galaxies in the 1920s, he made the groundbreaking discovery that the universe is expanding. It was not until 1998, however, that scientists observing Type Ia supernovae further discovered ...
Astronomy
May 3, 2023
67
1829
Celestial phenomena that change with time such as exploding stars, mysterious objects that suddenly brighten and variable stars are a new frontier in astronomical research, with telescopes that can rapidly survey the sky ...
Astronomy
Mar 15, 2023
0
91
The tattered shell of the first-ever historically recorded supernova was captured by the US Department of Energy-fabricated Dark Energy Camera, which is mounted on the National Science Foundation's (NSF) Víctor M. Blanco ...
Astronomy
Mar 1, 2023
0
139
