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Astrophysics
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Long-Missing Midsize Black Hole Flashes Into View
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
A supernova-like explosion dubbed the Camel appears to be the result of a newborn black hole eating a star from the inside out.
Growing Inventory of Black Holes Offers a Radical Probe of the Cosmos
One black hole is nice, but astrophysicists can do a lot more science with 50 of them.
In Violation of Einstein, Black Holes Might Have ‘Hair’
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
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.
Secret Ingredient Found to Power Supernovas
Three-dimensional supernova simulations have solved the mystery of why they explode at all.
Galaxy-Size Bubbles Discovered Towering Over the Milky Way
For decades, astronomers debated whether a particular smudge was close-by and small, or distant and huge. A new X-ray map supports the massive option.
Astronomers Get Their Wish, and a Cosmic Crisis Gets Worse
We don’t know why the universe appears to be expanding faster than it should. New ultra-precise distance measurements have only intensified the problem.
The New History of the Milky Way
Over the past two years, astronomers have rewritten the story of our galaxy.