Cosmic cobwebs?! 🕸️ Not quite. But this web of galaxies known as Abell 611 is held together by a mysterious force – dark matter, which astronomers believe makes up most of our universe. Find out more: go.nasa.gov/3SPUNJI #HappyHalloween from Hubble! #Hubblenitter.net/NASAHubble/status/1…
Nowadays, all galaxies and galaxy clusters are thought to be dominated by dark matter — an elusive quantity whose nature astronomers are still working to determine. Abell 611, the glowing galaxy cluster shown in this Hubble image, is no exception.
