#Holes

A stop sign with holes might look damaged, but those perforations serve a purpose. Here’s why they help signs withstand wind and stay visible.

Inside some very special black holes, there may be a boundary called a Cauchy horizon. Columnist Leah Crane explores the place beyond which physics breaks and anything is possible

A recent Webb discovery defies the classic scenario of how black holes form and grow.

From fiery foliage to summer swimming holes, these New York destinations deliver year-round.

In the heirarchy of black holes, intermediate mass black holes (IMBH) lie in between stellar mass black holes and supermassive black holes. But the problem is that we've never found one. There have been hints, but nothing conclusive.…

A new statistical model reveals more details about the ringdown period of merging black holes.

The JWST has shown us some strange things about supermassive black holes (SMBH) in the early Universe. Many of them are far more massive than we think they should be.…

When a massive star dies, it can leave behind a black hole. That much has been understood for decades. But the most monstrous black holes in the universe, the heavyweights detected by the faint ripples they send through the fabric of space and time aren't…

Astronomers have discovered two early-universe galaxies where the central black holes appear to have grown far faster than their host galaxies.…

At some 60 billion times the mass of the sun, this dark void could be home to a pair of black holes that are due for a cosmic collision.

The tiny holes are referred to as "breather holes" or "bleed holes," and they exist to contain the difference in pressure between the plane's cabin and outside.

Black holes live forever, at least according to general relativity. Once material crosses a black hole's event horizon, it is trapped forever, until the last day of cosmic time. But we know that isn't true. General relativity is a classical model.…

Ever since JWST first began peering out at the early Universe a few years ago, astronomers have been spotting strange

A peculiar object dubbed an 'X-ray dot' could help solve the mystery of the 'little red dots' discovered by the James Webb Space Telescope.

The Universe’s biggest black holes may not be born giants after all. Scientists analyzing gravitational-wave signals from dozens of black hole collisions found evidence that the heaviest black holes are likely “cosmic recyclers” — formed through repeated…

Black holes evaporate through Hawking radiation, meaning their days are numbered. But a new study finds they could enter a metastable stage where they look similar to white holes.

"The key question now is, are these black holes telling us that our models of stellar evolution are wrong, or are they being made in another way?"