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Physics

Astronomers generally stay away from the “Zone of Avoidance.” When one astronomer didn’t, she found a giant cosmic structure that could help explain why our galaxy moves so fast.
astrophysics

Hidden Supercluster Could Solve Milky Way Mystery

Astronomers generally stay away from the “Zone of Avoidance.” When one astronomer didn’t, she found a giant cosmic structure that could help explain why our galaxy moves so fast.

New data tracking the movements of millions of Milky Way stars have effectively ruled out the presence of a “dark disk” that could have offered important clues to the mystery of dark matter.
Abstractions blog

Deathblow Dealt to Dark Matter Disks

New data tracking the movements of millions of Milky Way stars have effectively ruled out the presence of a “dark disk” that could have offered important clues to the mystery of dark matter.

A number of high-energy anomalies raised hopes that astrophysicists had seen their first direct glimpses of dark matter. New studies suggest a different source may be responsible.
astrophysics

Galactic Glow, Thought to Be Dark Matter, Now Hints at Hidden Pulsars

A number of high-energy anomalies raised hopes that astrophysicists had seen their first direct glimpses of dark matter. New studies suggest a different source may be responsible.

Astronomers are mystified by a strange star explosion in a distant galaxy that might be a relic from an earlier cosmological era.
astrophysics

‘Crazy’ Supernova Looks Like a New Kind of Star Death

Astronomers are mystified by a strange star explosion in a distant galaxy that might be a relic from an earlier cosmological era.

The Zoomable Universe, a new book by the astrobiologist Caleb Scharf, the illustrator Ron Miller and 5W Infographics, tours the universe’s 62 orders of magnitude.
Multimedia

From the Edge of the Universe to the Inside of a Proton

The Zoomable Universe, a new book by the astrobiologist Caleb Scharf, the illustrator Ron Miller and 5W Infographics, tours the universe’s 62 orders of magnitude.

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.
astrophysics

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

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.

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

Colliding Neutron Stars Could Settle the Biggest Debate in Cosmology

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

Physicists theorize that a new “traversable” kind of wormhole could resolve a baffling paradox and rescue information that falls into black holes.
theoretical physics

Newfound Wormhole Allows Information to Escape Black Holes

Physicists theorize that a new “traversable” kind of wormhole could resolve a baffling paradox and rescue information that falls into black holes.

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.”
astronomy

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

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.”