Hubble’s view of massive galaxy cluster MACS J0717.5+3745. The large field of view is a combination of 18 separate Hubble images. Credit: NASA, ESA, Harald Ebeling (University of Hawaii at Manoa) & Jean-Paul Kneib (LAM) Earlier this year, astronomers using the Hubble Space Telescope were able to identify a slim filament of dark matter that … Continue reading "Hubble Studies Dark Matter Filament in 3-D"