... The North America and Pelican Nebulas . ... The cloud of glowing hydrogen gas is over 100 light-years across, sculpted by stellar winds and radiation from embedded open star cluster NGC 1893. Cosmic Rays . ... During late March and early April 1997, Comet Hale-Bopp passed nearly in front of the Andromeda Galaxy. ... Low clouds are seen in silhouette against the first hints of sunlight, while two famous cosmic clouds, the Clouds of Magellan, also hover in the brightening sky. ... First page ] Prev. ...