By observing tiny ripples in spacetime called "gravitational waves" that propagate away from colliding black holes, ...

Ancient quasars seen by the James Webb Space Telescope technically shouldn’t exist, but one rare type of dark matter could ...

Traditional black holes, as predicted by Albert Einstein's theory of General Relativity, contain what are known as ...

The white monster might show up anywhere in the cosmos, so we'll have to wait 100 quatrillion years. White holes, reversed black holes in nature.

"This would be the closest thing we know of around any black hole," Megan Masterson, a physicist at MIT who co-led the research, said in a statement. "This tells us that objects like white dwarfs ...

Astronomers theorize that a low-mass white ... black hole taken by the European Space Agency’s XMM-Newton, a space-based observatory that detects and measures X-ray emissions from black holes ...

The dense stellar remnant would, if confirmed, be the closest known object to any black hole ... holes and other powerful phenomena in the universe. But if astronomers determine a white dwarf ...

Supermassive black ... holes are even denser. Their interaction releases energy in the form of gravitational waves, which would eventually force the white dwarf on a collision course with the ...

Between 2022 and 2024, astronomers detected rapid X-ray flashes originating from the black hole in which the brightness repeatedly rose and fell every few minutes. Astronomers theorize that a low-mass ...