The universe is humming with gravitational radiation—a very low-frequency rumble that rhythmically stretches and compresses spacetime and the matter embedded in it.
Astronomy
Aug 9, 2023
0
904
(Phys.org)—A coin-sized detector might observe gravitational waves before the giant Laser Interferometer Gravitational-Wave Observatory (LIGO), according to two Australian physicists.
General Physics
Nov 28, 2014
23
2
The Big Bang may have not been alone. The appearance of all the particles and radiation in the universe may have been joined by another Big Bang that flooded our universe with dark matter particles. And we may be able to ...
Astronomy
Mar 6, 2023
9
148
The universe is expanding; we've had evidence of that for about a century. But just how quickly celestial objects are receding from each other is still up for debate.
Astronomy
Jun 30, 2023
147
1569
(PhysOrg.com) -- It sounds like the plot of a sci-fi movie: rogue black holes roaming our galaxy, threatening to swallow anything that gets too close. In fact, new calculations by Ryan O'Leary and Avi Loeb (Harvard-Smithsonian ...
Astronomy
Apr 29, 2009
13
0
A new analysis by a team of physicists offers an innovative means to predict "cosmological signatures" for models of dark matter.
General Physics
Jul 6, 2022
1
1590
Black holes are among the most fascinating phenomena of outer space, and we're learning more about them all the time. Just last week, a group of astronomers published a paper documenting a rare visible collision of black ...
Astronomy
Jun 30, 2020
11
150
(PhysOrg.com) -- An astrophysics experiment in America has demonstrated how fundamental research in one subject area can have a profound effect on work in another as the instruments used for the Laser Interferometer Gravitational-Wave ...
Quantum Physics
Jul 16, 2009
5
0
Earth is rapidly warming and scientists are developing a variety of approaches to reduce the effects of climate change. István Szapudi, an astronomer at the University of Hawaiʻi Institute for Astronomy, has proposed a ...
Planetary Sciences
Jul 31, 2023
23
186
(Phys.org) —The process of molecular hydrogen formation is a key factor in astrophysics – specifically in the physics and chemistry of interstellar clouds. An electrically neutral atom containing a single positively charged ...
