A simulation of the cosmic sheet as seen from the side, with voids above and below. (Wempe et al., Nat. Astron., 2026) The Milky Way isn't just drifting through a giant void in space untethered, but ...

Most of the (dark) matter beyond the Local Group of galaxies (which includes the Milky Way and the Andromeda Galaxy) must be ...

Two new studies have measured the expansion of the universe in our immediate cosmic neighborhood using a novel method that ...

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 ...

How is it that galaxies merge and collide but the universe is expanding and everything is moving away from everything else? Justin HammersleySterling Heights, Michigan Whether or not galaxies merge ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. When will the Milky Way collide with the Andromeda Galaxy?

A high-resolution colour image showing the central galaxies NGC5713 and NGC5719 taken by the Hyper Suprime-Cam at the Subaru telescope in Hawaii. A cosmic dance could be the future of the Milky Way as ...

For decades, astronomers wondered why most nearby galaxies are speeding away from the Milky Way instead of being pulled in by its gravity. New simulations reveal the answer: our galaxy sits in a ...

A cosmic dance could be the future of the Milky Way as it tracks a course to collide with neighbouring galaxies, a new survey has found. A high-resolution colour image showing the central galaxies ...