MemoryStone

‘Megamaser’ is most distant sign of cosmic water
A foreground galaxy distorts the quasar MG J0414+0534 into four images; two reveal water maser emission. Seen from nearby, the quasar might look similar to the galaxy M87 (inset at lower right) (Illustration: Milde Science Communication/HST Archive data/CFHT/J-C Cuillandre/Coelum)