Dark Matter Can Interact With Itself, Galaxy Collisions Shows - The distribution of dark matter in the galaxy cluster Abell 3827 appears as blue contour lines in this view from the Hubble Space Telescope. Credit: ESO/R.
Dark Energy Dark Matter The two largest pieces of the Universe that we know the least about, yet nothing less than the ultimate fate of the Universe will be determined by them. (Illustration: NASA/CXC/M.Weiss) The Universe in a Jelly Bean Jar
The ring of darkness in the galaxy cluster Cl 0024 17 indicates the presence of dark matter. New research explores the possibility that dark matter is made up of particles that weigh about as much as a human cell.
The Black Eye Galaxy (Messier is a spiral galaxy with an apparent magnitude of lying approximately 24 million light years from Earth. It is sometimes also called the Sleeping Beauty Galaxy or Evil Eye Galaxy.
NGC 3718 (Arp Distance: Million Light Years NGC 3718 and its companion NGC 3729 are physically related members of the Ursa Major galaxy cluster. The two galaxies appear to orbit each other at a projected separation of light years.