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astrophysics

Abstractions blog

Secret Ingredient Found to Power Supernovas

January 21, 2021

Three-dimensional supernova simulations have solved the mystery of why they explode at all.

The Milky Way galaxy shown in X-rays.
Abstractions blog

Galaxy-Size Bubbles Discovered Towering Over the Milky Way

January 6, 2021

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.

Abstractions blog

Astronomers Get Their Wish, and a Cosmic Crisis Gets Worse

December 17, 2020

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.

A computer simulation of two galaxies colliding.
astrophysics

The New History of the Milky Way

December 15, 2020

Over the past two years, astronomers have rewritten the story of our galaxy.

A pink beam at the center of a metallic experimental apparatus.
Abstractions blog

Physicists Pin Down Nuclear Reaction From Moments After the Big Bang

November 11, 2020

The newly-measured rate of a key nuclear fusion process from the Big Bang matches the picture of the universe 380,000 years later.

Cora Dvorkin in front of a starry backdrop.
Hidden Structure

The Cosmologist Who Dreams in the Universe’s Dark Threads

November 5, 2020

Cora Dvorkin discovered new possibilities for what dark matter could be. Now she’s devising unorthodox ways to identify it.

Spheres of three different sizes.
Abstractions blog

Debate Erupts Over How ‘Forbidden’ Black Holes Grow

November 3, 2020

Once missing in action, middleweight black holes have finally been detected. Now researchers are trying to figure out how they grow from small ones.

Abstractions blog

Physics Nobel Awarded for Black Hole Breakthroughs

October 6, 2020

Roger Penrose, Reinhard Genzel and Andrea Ghez were awarded the Nobel Prize in Physics for their studies of black holes.

Black holes of various sizes
black holes

Physicists Argue That Black Holes From the Big Bang Could Be the Dark Matter

September 23, 2020

It was an old idea of Stephen Hawking’s: Unseen “primordial” black holes might be the hidden dark matter. A new series of studies has shown how the theory can work.