To dark matter and dark energy, add dark galaxies — collections of stars so sparse and faint that they are all but invisible. An artist’s depiction of hydrogen gas observed in the galaxy J0613 ...

The proximity of G185.0-11.5 allows its study by other ground-based telescopes. If this gas concentration proves to be a dark galaxy, it could offer a unique opportunity to study dark matter directly.

The galaxy NGC 1277, located roughly 240 million light-years from here, has several times the mass of the Milky Way and should be comprised of between 10% and 70% dark matter.

"Galaxy clusters are also dominated by dark matter," Jacqueline McCleary, assistant professor of physics at Northeastern University, said in a statement. "Eighty to 90% of their mass is dark ...

Dark matter, though invisible, has profound gravitational effects that shape the large-scale structure of the universe. Until now, most studies relied on statistical summaries of galaxy positions ...

A neighbor galaxy of the Milky Way could offer fresh clues in the 90-year-long quest to determine the nature of dark matter.

A new image taken by the Dark Energy Camera shows a galactic onion, a shell galaxy with multiple layers that are spread out over 150,000 light-years. Skip to main content Menu ...

Dark matter in dwarf galaxy tracked using stellar motions. ScienceDaily. Retrieved June 2, 2025 from www.sciencedaily.com / releases / 2024 / 07 / 240711111354.htm. NASA/Goddard Space Flight Center.

At just 500 light-years away, the dark nebula is much closer to Earth than the galaxy. Related: Best new movies to stream on Netflix, Hulu, Prime Video, Max (HBO), and more ...

Still, if you get to see the Andromeda Galaxy, consider that you are seeing light 2.5 million years old, dating from when the human species was just beginning to establish a fragile foothold on ...