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black holes

Space

Sleeping black hole is way more massive than it should be

The James Webb Space Telescope has found an unusual galaxy in the early universe with a black hole almost half the mass of the galaxy itself, raising questions about how it formed

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Space

Monster black hole powers the brightest known object in the universe

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Space

Most newborn black holes spew gas so hard they almost stop spinning

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Space

Mysterious black hole jets may be the source of powerful cosmic rays

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Space

Mysterious object may be the lightest black hole we've ever seen

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Images of M87*, the supermassive black hole at the center of the galaxy Messier 87

Space

New fiery doughnut image is our most detailed glimpse of a black hole

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Physics

Scientists created a ‘giant quantum vortex’ that mimics a black hole

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The sun

Space

The sun could contain a tiny black hole that formed in the big bang

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A black hole in space

Space

‘Islands’ poking out of black holes may solve the information paradox

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Space

Strange way black holes lose energy could help solve cosmic puzzle

The spin of black holes may be harnessed by their magnetic fields, which release hundreds of millions of times the energy of the sun and could power their enormous jets

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location of distant black hole

Space

Astronomers have found the most distant black hole ever confirmed

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An illustration of a black hole created after a supernova

Space

Strange supernova blasts hint we have glimpsed a black hole’s birth

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A white hole is a theoretical solution to Einstein's field equations - a region which cannot be entered at all from the outside. In a sense, therefore, they are the time-reversed opposites of black holes. The theory suggests that a black hole is connected to a white hole via a tunnel called an Einstein-Rosen bridge (wormhole). Matter falls into the black hole and is expelled via the white one. Some theorists even argue that the Big Bang itself is a white hole, gushing out matter and creating a new universe while, on the other end, invisible and unreachable, is a black hole in a totally different universe.

Comment

White Holes review: Extreme physics from Carlo Rovelli

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Seven wonders of the Milky Way: An astronomer’s guide to the galaxy

Space

Seven wonders of the Milky Way: An astronomer’s guide to the galaxy

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