Venkatesh Rao@vgrHappy Halloween!Quote TweetBlack Hole@konstructivizm·Oct 23, 2022Hubble sees ghost light from dead galaxies in galaxy cluster Abell 2744 Credit: NASA, ESA, M. Montes (IAC), and J. Lotz, M. Mountain, A. Koekemoer, and the HFF Team (STScI)1:20 AM · Oct 23, 20225 Likes