Dark Matter

Nobody has stumbled into an emergency room with an inexplicable lightsaber wound, as far as we know — and that tells us something about dark matter, a new study suggests.

The secrets of the universe are so important that NASA plans spacewalk work to fix a dark matter experiment on the space station, said U.S. astronaut Jessica Meir.

There are voids in the universe, and we can't see them properly. But the good news is that astronomers just got much better at not seeing them properly.

Tiny ripples called magnons could lure even a fleeting, lightweight dark matter particle out of hiding.

We can't see it. It might not be made of normal matter. Our telescopes haven't directly detected it at all. But it sure seems like it's out there.

The Large Hadron Collider should be able to detect these rare particles — if they exist.

These particles would be much tinier than electrons.

Here's how the biggest thing in the universe could reveal secrets of the smallest things.

We now have a better idea of how big black holes were born in the early universe, a new study reports.

Before the Big Bang, time may have run in reverse.

These tiny subatomic particles, showering down from the depths of space, continue to surprise (and annoy) physicists chasing them.

Astronomers barely know anything about dark matter, but now they know this: It behaves differently in old, dying galaxies than in new, star-forming ones.

Past studies suggested there was less dark matter earlier on in the universe’s history.

As 2019 nears, physicists are hard at work on the next generation of dark matter detectors, and on parsing confusing data from detectors that already exist.

Stars that have been torn from their natal galaxies and now float within huge galaxy clusters can serve as dark-matter probes, a new study suggests.

A summertime sparkle seemed to hint that researchers had found dark matter, but it looks like those scientists were wrong.