Robert Lea is a science journalist in the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space, Newsweek and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.
An illustration showing a clustering of tiny primordial black holes that could account for dark matter.When it comes to primordial black holes being dark matter suspects, their alibi may be falling apart. Tiny black holes, created seconds after the birth of the universe, may survive longer than expected, reigniting a suspicion that primordial black holes could account for dark matter, the universe's most mysterious stuff.currently represents one of the most pressing problems in physics.
Like their larger black hole counterparts formed from either the collapse of massive stars or the merger of relatively smaller black holes, according to Fernandes Alexandre, primordial black holes would have a light-trapping outer boundary called an event horizon. The diameter of this horizon is determined by the mass of the black hole, which means the event horizon would be incredibly small in those cases."Smaller than the radius of a proton," Fernandes Alexandre said.
"In order to decrease its mass through the emission of Hawking radiation, the black hole has to 'rewrite' its information, or something else. This rewriting process takes time," Fernandes Alexandre explained."It is called 'memory burden' because of this memory that now has to be passed along to something else, and that just kind of slows down the evaporation process overall. So it's a kind of stabilization.
He added that if primordial black holes are lighter than planetary masses, then, even on cosmic timescales, they would be so small they'd very rarely collide. These primordial black holes could rather cluster to create theAn illustration of a cloud of dark matter, could this actually be a cluster of black holes?
Thoss added that the beauty of using primordial black holes as an explanation for dark matter is that, unlike suggesting a hypothetical particle such as an axion to explain the mystery, primordial black holes don't require an extension to the Standard Model of particle physics, the best explanation we have of the universe on subatomic scales.Still, primordial black holes are going to be incredibly difficult to confirm as dark matter, if they really do explain the phenomenon.
United States Latest News, United States Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
Benny Blanco takes us on a 'bang bang' for his favorite Thai food, tacos and oystersBenny Blanco talks tacos, Thai food, his new cookbook and getting someone to make their 'O face' on the latest crawl.
Read more »
Creepy Nuts’ ‘Bling-Bang-Bang-Born’ Scores 10th Week at No. 1 on Japan Hot 100Creepy Nuts' domination of the Billboard Japan Hot 100 continues as “Bling-Bang-Bang-Born' marks its 10th week atop the Japan Hot 100.
Read more »
Mobile Legends: Bang Bang redeem codesNo need to spend Diamonds in the game.
Read more »
Black Holes May Have Sped Up Star Formation After the Big BangNew research suggests black holes might have helped birth new stars in the aftermath of the Big Bang. Should scientists rethink galaxy evolution and formation?
Read more »
Tiny orchid flowers pollinated by tiny fliesResearchers Yuta Sunakawa, Ko Mochizuki, and Atsushi Kawakita of the University of Tokyo have discovered the first orchid species pollinated by gall midges, a tiny fly species. This is the first documented case of an orchid species found to be pollinated by gall midges, and it makes the orchids the eleventh such plant family.
Read more »
New Simons Observatory in Chile aims to map afterglow of the Big BangSimons Observatory opening in a few weeks in the Atacama Desert aims to provide the “first incontrovertible evidence for cosmic inflation.”
Read more »