... It's easy to get lost following the intricate filaments in this detailed image of faint supernova remnant Simeis 147. ... For reasons unknown, star V838 Mon's outer surface suddenly greatly expanded with the result that it became the brightest star in the entire Milky Way Galaxy in January 2002. ... A stereo view of the closest star, this creatively composited image was constructed from an extensive archive of pictures taken between March 2004 and April 2005. ... Rays from an Unexpected Aurora . ...