Astronomy Picture of the Day . ... A single, long exposure captured these star trails above a remarkably colorful sea of clouds. ... Young Moon Meets Evening Star . ... Curiosity Rover Lifts Off for Mars . ... A fantastic jumble of young blue star clusters, gigantic glowing gas clouds, and imposing dark dust lanes surrounds the central region of the active galaxy Centaurus A. This image from the Hubble Space Telescope has been processed to present a natural color picture of this cosmic maelstrom. ...