Lyra, or The Harp, a constellation in the Northern Hemisphere, between Hercules and Cygnus. In mythology, it represents the lyre of Orpheus or Mercury. The constellation's brightest star is Alpha Lyrae, or Vega, the fifth brightest star in the night sky as seen from the earth. Lyra contains a double-double star, Epsilon Lyrae, and a well-known planetary nebula, the Ring Nebula.
The moon is often the largest object in the sky outside of the sun. What is the moon made of, how did it form -- and why do people blame it for their strange behavior?
One tragic, moonless night in April 1912, the Titanic slid into the depths of the North Atlantic Ocean -- for good. A crew of Texas State academics suggested that Earth's favorite satellite may have some explaining to do.