... In 1995, a stunning false-color optical image from the Hubble Space Telescope detailed the swirls of this glowing nebula, known to be the gaseous shroud expelled from a dying sun-like star about 3,000 light-years from Earth. ... The large Martian crater above just left of center: is this a fresh crater, a degraded crater, or a ghost crater? ... In the center of the Lagoon Nebula one finds glowing gas, star clusters, and dense knots of gas and dust just now forming stars. ... First page ] Prev. ...