Saturday, April 4, 2015

Hubble Finds Ghosts Of Quasars Past

The NASA/ESA Hubble Space Telescope has imaged a set of enigmatic quasar ghosts -- ethereal green objects which mark the graves of these objects that flickered to life and then faded. The eight unusual looped structures orbit their host galaxies and glow in a bright and eerie goblin-green hue. They offer new insights into the turbulent pasts of these galaxies. The ethereal wisps in these images were illuminated, perhaps briefly, by a blast of radiation from a quasar -- a very luminous and compact region that surrounds a supermassive black hole at the centre of a galaxy.



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