Astronomers have discovered a flattened structure of matter around the Milky Way that explains the unusual motion of nearby galaxies.

Forces have mediator particles. Electromagnetism is mediated by the photons, for example. So most of the decay of this excited dark matter particle would be this unknown mediator. The excited state ...

For billions of years before reaching its current location, the Sun may have slowly travelled as part of a large group, or “wave,” of stars drifting out from the inner parts of the Milky Way. This ...

Astronomers from the University of Groningen have discovered that the Milky Way does not move in the cosmic void, but is embedded in a flat "sheet" of dark matter. This was reported on March 11 in the ...

Using data from the Magellan Clay telescope and the Canada-France-Hawaii Telescope (CFHT), astronomers have investigated a ...

Like tiny photobombers, cosmic anomalies resembling small, bright red points show up in almost every snapshot taken by the ...

MOTHRA observing at night. Each mount is equipped with a wide area web cam. Besides the mount in the foreground two others ...

An international research team has found that the Milky Way and its galactic neighbors appear to sit inside a vast, flat concentration of dark matter, a structure stretching roughly 10 megaparsecs and ...

T he first time I heard about galaxies without dark matter, I was sitting in my very first graduate class at the University of São Paulo. It was 2018, and the discovery had just ...

In Istanbul, Turkey, on the afternoon of Wednesday, December 24, 2025, a model aircraft enthusiast experienced a bittersweet moment.

Two properties in Queenstown are at the vanguard of sustainability. They’re doing it with “net positive” engineering—and star power.