SDSS J0901+1814, a giant galaxy cluster located 3.9 billion light-years away in the constellation of Cancer, is so massive that its gravity distorts and magnifies light from a more distant starburst galaxy. This Hubble image shows the strong-lensing galaxy cluster SDSS J0901+1814. The lensed star-forming galaxy LRG-3-817 is seen as a long arc to the left of the cluster’s central galaxy. The color image was made from separate exposures taken in the...
