A vast, flat sheet of dark matter may solve the long-standing mystery of why our neighboring galaxy Andromeda is speeding ...

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

For more than a century, astronomers have watched in astonishment as the Andromeda galaxy ignored the grand flow of cosmic expansion and hurtled straight toward the Milky Way. While almost every other ...

Astronomers have produced the most detailed map yet of dark matter, revealing the invisible framework that shaped the Universe long before stars and galaxies formed. Using powerful new observations ...

Two ways of measuring how fast the universe is expanding disagree, a puzzle known as the Hubble tension. Tiny magnetic fields ...

This idea is called the big bang model—which is an unfortunate name because it brings to mind a cosmos expanding like an ...

Scientists are now certain that James Webb will break every such record until the earliest observable light is eventually ...

NASA’s James Webb Space Telescope has captured a detailed mid-infrared image of the Sombrero galaxy, revealing new features ...

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, ...

Time only moves microseconds faster on the moon, so why would it need its own timezone? Learn how the moon's timezone plays a ...

By Will Dunham WASHINGTON, Feb 5 (Reuters) - Scientists are observing the behavior of a supermassive black hole that is ...

A surprising new set of objects in space with mismatched parts has been discovered by University of Missouri astronomers, ...