Friday, November 22, 2024

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Black Holes

At Long Last, Mathematical Proof That Black Holes Are Stable

In 1963, the mathematician Roy Kerr found a solution to Einstein’s equations that precisely described the spacetime outside what...

Astronomers Have Revealed a Black Hole’s Photon Ring for the First Time

In 2019 the Event Horizon Telescope gave us our first direct image of a black hole. It was...

Primordial Black Holes Could Have Triggered the Formation of Supermassive Black Holes

The early moments of the universe were turbulent and filled with hot and dense matter. Fluctuations in the...

A Black Hole can Tear a Neutron Star Apart in Less Than 2 Seconds

Almost seven years ago (September 14th, 2015), researchers at the Laser Interferometer Gravitational-wave Observatory (LIGO) detected gravitational waves (GWs)...

A Dormant Black Hole has Been Discovered Just Outside the Milky Way

What happens when a massive star dies? Conventional wisdom (and observational evidence) say that it can collapse to form...

We Finally Know Where the Highest Energy Cosmic Rays are Coming From: Blazars

Way out there in space is a class of objects called blazars. Think of them as extreme particle...

A Star Came too Close to a Black Hole and was Torn Apart. Surprisingly Little Actually Went In

What happens when a star wanders too close to a supermassive black hole? The obvious story is that it...

One Star Flies Past the Milky Way’s Black Hole at 3% the Speed of Light

There’s a population of stars in the heart of our galaxy whipping around Sagittarius A* (the Milky Way’s central...

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