apr 112013
Anne's Picture of the Day: Spiral Galaxy Messier 83

April 11, 2013 Messier 83, a barred spiral galaxy in Hydra Image Credit: ESO Messier 83 (also known as NGC 5236 and the Southern Pinwheel for its majestic spiral arms) is a barred spiral galaxy of some 40,000 light-years across, located about 14.7 million light-years away in the southern constellation of Hydra, the Water-Snake, while [continue reading]

jul 312012
In Supernova Remnant Spins One of the Youngest Pulsars Ever Seen

  Over fifty years ago, a supernova was discovered in Messier 83, a spiral galaxy about 15 million light years from Earth. Astronomers have used NASA’s Chandra X-ray Observatory to make the first detection of X-rays emitted by the debris from this explosion. This new Chandra image,released yesterday of M83 is one of the deepest X-ray observations ever made [continue reading]