
The Lagoon Nebula (Messier 8) is a vast, glowing stellar nursery in the constellation Sagittarius, where newborn stars blaze inside swirling clouds of pink hydrogen gas and dark dust lanes. Bright enough to glimpse with the naked eye under dark skies, it became one of astronomy's most celebrated portraits when the Hubble Space Telescope imaged its turbulent heart to mark the observatory's 28th anniversary in 2018.