An international group of scientists finally proved that slowly rotating Kerr black holes are stable, a report from Quanta Magazine reveals. In 1963, mathematician Roy Kerr…
Category: cosmology – Page 224
Unstable black holes would require a rewrite of Einstein’s gravitational theory.
An international group of scientists finally proved that slowly rotating Kerr black holes are stable, a report from Quanta Magazine
In 1963, mathematician Roy Kerr found a solution to Einstein’s equations that accurately described the spacetime around what is now known as a rotating black hole.
The solutions to Einstein’s equations that describe a spinning black hole won’t blow up, even when poked or prodded.
The JWST provides an intriguing look at the early universe, but it’s not yet rewriting fundamental theories of the cosmos.
NASA has dropped a remix of what a black hole sounds like — and it’s exactly what you’d expect. The hole in question sits 200 million light-years away in the Perseus galaxy cluster — an 11 million-light-year-wide set of galaxies packed with hot gas. In the clip, you can hear rumbling and groaning which feels fit for an episode of Stranger Things, but it’s actually pressure waves rippling through the hot gas.
Our model of the Universe, dominated by dark matter and dark energy, explains almost everything we see. Almost. Here’s what remains.
The word ‘universe’ once described everything that exists. But as our horizons have expanded, many scientists have begun to consider what’s beyond our own cosmos, and…
At the heart of merging galaxies is the closest pairing of supermassive black holes ever found that will eventually collide and create a larger black hole.
Half a mile-deep lab is shielded with 100 tons of steel.
A gold mine located over half a mile (one km) underground in Victoria, Australia, has been converted into the Stawell Underground Physics Laboratory to study dark matter, a press release from Australia’s Nuclear Science and Technology Organization (ANSTO) said.
Scientists believe that dark matter, the invisible substance largely unknown to mankind, makes up 85 percent of our universe’s mass. To know more about it, scientists have been building dark matter detectors, and one of the “most sensitive” detectors delivered some significant results last month.
As with all things in science, one does not just stop with one data record.
A kilometre under the ground in Stawell, in the Northern Grampians in Victoria, a team of Australian scientists have put the final touches on an underground lab that will help us understand the nature of our universe.
Stage 1 of the Stawell Underground Physics Laboratory was officially opened today. It will be home to multi-disciplinary scientists from five research partners who are searching for evidence of dark matter.
A gold mine located over half a mile (one km) underground in Victoria, Australia, has been converted into the Stawell Underground Physics Laboratory to study dark matter, a press release from Australia’s Nuclear Science and Technology Organization (ANSTO) said.
Scientists believe that dark matter, the invisible substance largely unknown to mankind, makes up 85 percent of our universe’s mass. To know more about it, scientists have been building dark matter detectors, and one of the “most sensitive” detectors delivered some significant results last month.
The oscillations in binary neutron stars before they merge could have big implications for the insights scientists can glean from gravitational wave detection.
Researchers at the University of Birmingham have demonstrated the way in which these unique vibrations, caused by the interactions between the two stars’ tidal fields as they get close together, affect gravitational-wave observations. The study is published in Physical Review Letters.
Taking these movements into account could make a huge difference to our understanding of the data taken by the Advanced LIGO and Virgo instruments, set up to detect gravitational waves —ripples in time and space—produced by the merging of black holes and neutron stars.