Hubble's new image of galaxy cluster Abell 209 reveals over 100 galaxies and gravitational lensing effects from dark matter ...

This NASA/ESA Hubble Space Telescope image features the galaxy cluster Abell 209.ESA/Hubble & NASA, M. Postman, P. Kelly A ...

Dark matter is being thrown off the table with this new theory - simpler, and it relies on something that can be seen. Cosmic ...

The Milky Way is not just a band of stars stretching across the night sky; it's a massive, dynamic galaxy spanning over 200,000 light-years and containing hundreds of billions of stars, planets, and ...

Scientists predict up to 100 invisible galaxies may orbit the Milky Way, hiding just beyond our current detection limits.

A new galaxy was found with 10,000 more of unseen mass than the Milky Way. Now, scientists are wondering if there are more of ...

New supercomputer simulations suggest the Milky Way could be surrounded by dozens more faint, undetected satellite ...

There may be many more satellite galaxies in the Milky Way than have been observed, according to new Durham University ...

New simulations suggest that dozens of ultra-faint “ghost” galaxies may be orbiting the Milky Way, hidden from current ...

A colossal cluster of galaxies is bending the very fabric of space—and it’s the focus of this week’s breathtaking image from ...

A new study published in the Journal of Cosmology and Astroparticle Physics (JCAP) proposes that the core of our galaxy is full of an all-new category of star called a dark dwarf—and that these not-so ...