Are small black holes possible? A black hole of this mass would be about the size of an atomic nucleus. Physicists have speculated that, when the universe was very young and hot, copious numbers of miniature black holes may have been...
How many black hole are there in the Universe? Astonishingly, the researchers have found that the number of black holes within the observable Universe (a sphere of diameter around 90 billion light-years) at present time is about 40 billion billion (i.e.,...
What is a stellar size black hole? A typical stellar-class of black hole has a mass between about 3 and 10 solar masses. Supermassive black holes exist in the center of most galaxies, including our own Milky Way Galaxy. They are...
Who first discovered black hole? A black hole is a volume of space where gravity is so strong that nothing, not even light, can escape from it. This astonishing idea was first announced in 1783 by John Michell, an English country...
What is truly inside a black hole? The singularity at the center of a black hole is the ultimate no man’s land: a place where matter is compressed down to an infinitely tiny point, and all conceptions of time and space...
How are black holes created simple? Black holes are regions in space where an enormous amount of mass is packed into a tiny volume. This creates a gravitational pull so strong that not even light can escape. They are created when...
What is inside a black hole? The singularity at the center of a black hole is the ultimate no man’s land: a place where matter is compressed down to an infinitely tiny point, and all conceptions of time and space completely...
Is a black hole made up of dark matter? Summary: Astrophysicists suggest that primordial black holes account for all dark matter in the universe. What are black holes actually made of? Most black holes form from the remnants of a large...
Could primordial black holes be dark matter? Also popular is a theory that dark matter is made of lighter but equally hypothetical particles called axions. But over the past half-decade or so, some researchers have become more open to an older...
Do intermediate black holes exist? In 2021 the discovery of a 100,000 solar-mass intermediate-mass black hole in the globular cluster B023-G78 in the Andromeda Galaxy was posted to Arxiv in a preprint. What causes intermediate black holes? One possible mechanism for...