Showing posts with label black hole. Show all posts
Showing posts with label black hole. Show all posts

Thursday, 19 February 2026

Is our galaxy’s black hole actually made of dark matter?

 

Image courtesy of EHT Collaboration.

Joel Kontinen

Does dark matter exist? Some researchers think that it will not but some are adamant that it will in the central black hole that defines our galaxy.

At the centre of our galaxy lies a supermassive black hole called Sagittarius A* – but one group of researchers is suggesting it may not be a black hole at all. The team says that it, and other black holes around its size, may actually be clumps of dark matter.

Dark matter, so named because it doesn’t seem to interact with light or regular matter in any way except gravitationally, makes up about 85 per cent of the total matter in the universe, but we know very little about it. What we do know, because of the way galaxies rotate, is that most galaxies are embedded in a halo of the stuff. “We know it has to be at the outskirts of galaxies, but we don’t know what happens at the very centre,” says Valentina Crespi at the National University of La Plata (UNLP) in Argentina.

Source: 

Leah Crane 2026 Is our galaxy’s black hole actually made of dark matter? | New Scientist 19 February 

Sunday, 16 June 2024

Colour-charged black holes may have formed in the early universe

 

Image courtesy of betibup33/Shutterstock

Joel Kontinen

The latest view on black holes is quite interesting, it supposed that some black holes were very small,  evolutionist propose that were formed after the Big Bang in the early universe.

“The universe may have once been speckled with tiny black holes with a strange property called colour charge. These exotic objects, if they existed, would have formed in the instants after the big bang and evaporated just as quickly, but they could have upset the balance of elements that formed in the early universe.

Minuscule black holes formed right at the beginning of the cosmos are known as primordial black holes.”  

Yes, this study is a mixture of millions years and Darwinism but it does not deal  Darwinism with the real problem.

Source:

Leah Crane, 2024,  Odd black holes smaller than protons may have once littered the cosmos | New Scientist 13. June