Closeup of the mildly toxic tentacles of the Upsidedown Jellyfish (Cassiopeia andromeda) which likes to inhabit shallow tropical lagoons. Red Sea.

A wide-angle view of the Northern Hemisphere autumn Milky, from Aquila at bottom right in thw south, to Cassiopeia and Perseus at upper left in the northeast. Cygnus is at centre overhead on a late October evening. The Summer Triangle stars are at centre and right; the Andromeda Galaxy and Triangulum galaxies are at bottom left. The dark nebula Le Gentil 3, aka the Funnel Nebula, is at centre.