Hubble Telescope at 20: NASA Astronomers' Top Photos
Unbelievably beautiful! Hubble telescope image. Hubble telescope sees Orion's Sword's detail. The composite image shows hundreds of young stars, which are emitting ultraviolet light and streams of charged particles called stellar wind. The particle streams sculpt the dusty cloud into its dramatic swirling shape. IMAGE COURTESY NASA
The Butterfly Nebula - NGC 6302 (also called the Bug Nebula, Butterfly Nebula, or Caldwell 69) is a bipolar planetary nebula in the constellation Scorpius. The structure in the nebula is among the most complex ever observed in planetary nebulae. The spectrum of NGC 6302 shows that its central star is one of the hottest stars in the galaxy, with a surface temperature in excess of 200,000 K, implying that the star from which it formed must have been very large.