For nearly a century, astronomers have known that the universe is expanding. Most galaxies are carried outward with the flow ...

The shape of the cosmos depends on a balance of two competing forces: the pull of gravity and the expansion driven by dark ...

A sheet of dark matter lying beyond the boundary of the Local Group is responsible for this.

On a clear night, the Milky Way and the Andromeda galaxy look like close neighbors. In space, they really are.

New analysis by Francesca Capel and Nadine Bourriche narrows possible sources of the Amaterasu cosmic ray, suggesting nearby galaxies like M82 rather than the Local Void.

The suburbia of the Milky Way does not form a ball of matter with the center at its center. Rather, the mass around it is arranged in a wide, flattened form, which alters the sense of gravity back ...

Intense radiation emitted by active supermassive black holes—thought to reside at the center of most, if not all, galaxies—can slow star growth not just in their host galaxy, but also in galaxies ...

CSIC-INTA and using modelling techniques developed at the University of Oxford, has uncovered an unprecedented richness of small organic molecules in the deeply obscured nucleus of a nearby galaxy, ...

A new study has uncovered an unprecedented richness of small organic molecules in the deeply obscured nucleus of a nearby galaxy. This provides new insights into how complex organic molecules and ...

That the universe is expanding has been known for almost a hundred years now, but how fast? The exact rate of that expansion ...

Since it turned on, the James Webb Space Telescope has revealed dozens of mysterious red blobs in space. The so-called Little ...

Sky This Week is brought to you in part by Celestron. Friday, February 20Once the waxing Moon sets this evening, its ...