Dark Matter

The universe’s hidden mass may be made of black holes, which could wobble the planets of the solar system when they pass by

Dark matter may be lighter in mass than once hoped

Cosmic surveys suggest the force pulling the universe apart might not be constant after all

A single-celled organism’s pathfinding reveals connections in the universe’s vast “cosmic web”

The latest images from Euclid, a European mission studying dark matter and dark energy, are spectacularly beautiful—and scientifically promising

The cosmos is brimming with dark energy and other mysterious phenomena

Domain walls, long a divisive topic in physics, may be ideal explanations for some bizarre cosmic quirks

Scientists have proposed a new way to learn whether hypothetical particles called axions really exist—and whether axions make up most of the universe’s dark matter

The world’s deepest and largest underground laboratory is scaling up its search for dark matter

A ghostly giant galaxy called Nube may become a testbed for esoteric theories of dark matter

Residents of a mining town waits for economic recovery while physicists under their feet wait for answers from the universe.

Several unexplained measurements are threatening to upend scientists’ understanding of the universe’s origin and fate