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dark matter

Erik Verlinde by Ilvy Njiokiktjien for Quanta Magazine

The Case Against Dark Matter

A proposed theory of gravity does away with dark matter, even as new astrophysical findings challenge the need for galaxies full of the invisible mystery particles.

Abstractions blog

Off-the-Shelf Lens Assists Dark Matter Find

A camera lens often used by wildlife and sports photographers has helped astronomers learn about dark matter and galaxy formation.


Strange Dark Galaxy Puzzles Astrophysicists

The surprising discovery of a massive, Milky Way–size galaxy that is made of 99.99 percent dark matter has astronomers dreaming up new ideas about how galaxies form.


A Seeker of Dark Matter’s Hidden Light

The astrophysicist Tracy Slatyer is searching for faint wisps of dark matter annihilating in the early universe — and perhaps in hiding places closer to home.


Mining Black Hole Collisions for New Physics

The physicist Asimina Arvanitaki is thinking up ways to search gravitational wave data for evidence of dark matter particles orbiting black holes.

Inside this chamber, silica spheres probe for hidden extra dimensions, distortions of gravity, and dark-matter particles. | Peter DaSilva for Quanta Magazine
experimental physics

Tiny Tests Seek the Universe’s Big Mysteries

The search for exotic new physical phenomena is being led by huge experiments like the Large Hadron Collider. But at the other end of the spectrum lie tabletop experiments — small-scale probes of hidden dimensions, dark matter and dark energy.

dark matter

Debate Intensifies Over Dark Disk Theory

In the new, free-for-all era of dark matter research, the controversial idea that dark matter is concentrated in thin disks is being rescued from scientific oblivion.

Quantized Columns

Time’s (Almost) Reversible Arrow

The irreversibility of time may be a clue as to what makes up the universe’s dark matter.


The Case for Complex Dark Matter

The physicist James Bullock explains how a complicated “dark sector” of interacting particles may illuminate some puzzling observations of the centers of galaxies.