... Reflected Aurora Over Alaska . ... Rocks from space hit Earth every day. ... Larger bits appear initially as a bright meteor. ... Grand spiral galaxies often seem to get all the glory, flaunting their young, bright, blue star clusters in beautiful, symmetric spiral arms. ... Comet Lemmon near the South Celestial Pole . ... The Arms of M106 . ... The spiral arms of bright galaxy M106 sprawl through this remarkable multiframe portrait, composed of data from ground- and space-based telescopes. ...