Image by ESA; additional elements by K. Teramura, Univ. Hawaii Institute for Astronomy.
November 27, 2012 6:48 AM
Astronomers using the W. M. Keck Observatory, the Hubble Space Telescope, and other telescopes on Mauna Kea have studied a giant filament of dark matter in 3D for the first time. Image released Oct. 17. 2012.