Most everybody is familiar with the Big Bang—the notion that an impossibly hot, dense universe exploded into the one we know today. But what do we know about what came before?
General Physics
Apr 19, 2019
12
227
A team of scientists has proposed a powerful new test for inflation, the theory that the universe dramatically expanded in size in a fleeting fraction of a second right after the Big Bang. Their goal is to give insight into ...
Astronomy
Mar 26, 2019
172
1869
A new study reports characteristics of massive, ultracompact galaxies. It was published in the journal Astronomy & Astrophysics and was carried out by an international team led by Fernando Buitrago of Instituto de Astrofísica ...
Astronomy
Nov 28, 2018
0
172
Dark matter and dark energy may have driven inflation, the exponential expansion of the universe moments after the Big Bang. A new cosmological model proposed by physicists at the University of Warsaw, which accounts for ...
Astronomy
Jun 8, 2018
12
45
Astronomers studying the motions of galaxies and the character of the cosmic microwave background radiation came to realize in the last century that most of the matter in the universe was not visible. About 84 percent of ...
Astronomy
Apr 20, 2018
165
786
Some theories of the early universe predict density fluctuations that would have created small "primordial black holes," some of which could be drifting through our galactic neighborhood today and might even be bright sources ...
Astronomy
Feb 22, 2018
0
60
A new study published in Physical Review Letters outlines how scientists could use gravitational wave experiments to test the existence of primordial black holes, gravity wells formed just moments after the Big Bang that ...
General Physics
Nov 30, 2017
11
442
The very idea that a black hole could have a temperature strains the imagination. I mean, how can something that absorbs all the matter and energy that falls into it have a temperature? When you feel the warmth of a toasty ...
Space Exploration
Sep 5, 2016
5
62
Binary black holes recently discovered by the LIGO-Virgo collaboration could be primordial entities that formed just after the Big Bang, report Japanese astrophysicists.
General Physics
Jul 27, 2016
6
67
Dark matter is a mysterious substance composing most of the material universe, now widely thought to be some form of massive exotic particle. An intriguing alternative view is that dark matter is made of black holes formed ...
Astronomy
May 24, 2016
200
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