... During observations of Sagittarius A* with the orbiting Chandra X-ray Observatory, the bright X-ray source at the very center of our Milky Way brightened dramatically for a few minutes. ... Hot blue stars shine brightly in this beautiful, recently formed galactic or "open" star cluster. ... Moon AND Stars . ... Visible as the central dot is quasar 3C175, the active center of a galaxy so distant that the light we see from it was emitted when the Earth was just forming. 2dF Sees Waves of Galaxies . ...