Jonathan O'Callaghan

Jonathan O'Callaghan

Contributing Writer

Latest Articles

How Maxwell’s Demon Continues to Startle Scientists

April 22, 2021

The thorny thought experiment has been turned into a real experiment — one that physicists use to probe the physics of information.

Long-Missing Midsize Black Hole Flashes Into View

March 29, 2021

Black holes seemed to come only in sizes small and XXL. A new search strategy has uncovered a black hole of “intermediate” mass, raising hopes of more to come.

New Kind of Space Explosion Reveals the Birth of a Black Hole

March 10, 2021

A supernova-like explosion dubbed the Camel appears to be the result of a newborn black hole eating a star from the inside out.

In Violation of Einstein, Black Holes Might Have ‘Hair’

February 11, 2021

A new study shows that extreme black holes could break the famous “no-hair” theorem, and in a way that we could detect.

‘Unicorn’ Discovery Points to a New Population of Black Holes

January 27, 2021

Small black holes were nowhere to be found, leading astronomers to wonder if they didn’t exist at all. Now a series of findings, including a “unicorn” black hole, has raised hopes of solving the decade-long mystery.

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