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neutron stars

astrophysics

Squishy or Solid? A Neutron Star’s Insides Open to Debate

October 30, 2017

The core of a neutron star is such an extreme environment that physicists can’t agree on what happens inside. But a new space-based experiment — and a few more colliding neutron stars — should reveal whether neutrons themselves break down.

Artist’s rendering of merging neutron stars.
cosmology

Colliding Neutron Stars Could Settle the Biggest Debate in Cosmology

October 25, 2017

Newly discovered “standard sirens” provide an independent, clean way to measure how fast the universe is expanding.

Neutron star dancers
astronomy

Neutron-Star Collision Shakes Space-Time and Lights Up the Sky

October 16, 2017

Astronomers have for the first time matched a gravitational-wave signal to a kilonova’s burst of light, observations that will “go down in the history of astronomy.”

Very Large Array, Socorro, NM
Abstractions blog

Ultra-Powerful Radio Bursts May Be Getting a Cosmic Boost

October 10, 2017

Repeating radio bursts are among the most mysterious phenomena in the universe. A new theory explores how some of their puzzling properties can be explained by galactic lenses made of plasma.

astrophysics

A Cosmic Burst Repeats, Deepen­ing a Mystery

April 18, 2017

After a surprise discovery, astrophysicists are racing to understand superenergetic flashes of radio waves that sometimes beep out from distant galaxies.

astrophysics

A New Blast May Have Forged Cosmic Gold

March 23, 2017

For decades, researchers believed that violent supernovas forged gold and other heavy elements. But many now argue for a different cosmic quarry.