It shows a rotational structure but no visible stars. This characteristic aligns with the hypothesis of a dark galaxy, primarily composed of dark matter. Measurements indicate that unexplained ...

This dark matter detection method would hinge on two of these vast groupings of galaxies meeting and smashing into each other. As these galaxy clusters are packed with dark matter, astronomers ...

Astronomers have stumbled upon yet another ghostly galaxy that appears to be devoid of dark matter. First spotted in 2024, FCC 224 is a dwarf galaxy that boasts a dozen luminous, tightly bound ...

A galaxy floating alongside our own some 380,000 light-years from Earth could offer fresh clues in the 90-year-long quest to determine the nature of dark matter, the invisible glue that holds ...

The new observations are the first to directly probe the decoupling of the dark and normal matter velocities. Galaxy clusters are among the largest structures in the universe, glued together by ...

Though galaxies are mostly made of dark matter, understanding how it is distributed within a galaxy offers clues to what this substance is, and how it's relevant to a galaxy's evolution.

This was the birth of our modern universe of galaxies, so poetically celebrated in Seeing in the Dark. Today, astronomers have measured the distance to the Andromeda Galaxy much more precisely ...

New research has found the first evidence of a massive galaxy with no dark matter. The result is a challenge to the current standard model of cosmology. A team of scientists, led by the researcher ...

Their updated results, taken with other measurements — exploding stars, leftover light from the young universe and distortions in galaxy shape — support the idea presented last year that dark ...