Hubble Captures Mysterious ‘Quasar Ghosts’

Astronomers using the Hubble Space Telescope have photographed eight unusual looped structures – ephemeral ‘ghosts’ of quasars that flickered to life and then faded. The eight objects orbit their host galaxies – NGC 5972, NGC 5252, Mrk 1498, UGC 11185, UGC 7342, the Teacup (also known as 2MASX J14302986+1339117), 2MASX J15100402+0740370, and 2MASX J22014163+1151237 – [...] —> Read More