jun 232014
 
Anne's Image of the Day: The WR 134 Ring Nebula

  June 23, 2014 The WR 134 Ring Nebula in Cygnus Image Credit & Copyright: Don Goldman, Astrodon Imaging The WR 134 Ring Nebula is a ring-like nebula of gas and dust of more than 50 light-years across, located about 6,000 light-years away from Earth in the northern constellation of Cygnus (the Swan). This image highlights [continue reading]

mei 242013
 
Magnetars are More Common than Thought

  Magnetars — the dense remains of dead stars that erupt sporadically with bursts of high-energy radiation — are some of the most extreme objects known in the Universe. A major campaign using NASA’s Chandra X-ray Observatory and several other satellites shows magnetars may be more diverse — and common — than previously thought. This [continue reading]

apr 292013
 
Anne's Picture of the Day: Supernova Remnant G350.1-0.3

April 29, 2013 G350.1-0.3, a supernova remnant in Scorpius Image Credit: NASA/CXC/SAO/I. Lovchinsky et al. G350.1-0.3 is a very bright supernova remnant of just about 8 light-years across, located some 14,700 light-years away from Earth toward the center of the Milky Way in the constellation of Scorpius. It is associated with the neutron star XMMU [continue reading]

mrt 172013
 
A New, Very Young Supernova Remnant Found

  While performing an extensive X-ray survey of our galaxy’s central regions, NASA’s Swift satellite has uncovered the previously unknown remains of a shattered star. Designated G306.3-0.9 after the coordinates of its sky position, the new object ranks among the youngest-known supernova remnants in our Milky Way galaxy. This composite of supernova remnant G306.3–0.9 merges [continue reading]

feb 182013
 
Studying Supernova Shocks In Situ in our own Solar System

  During a chance encounter with an unusually strong blast of solar wind arriving at Saturn, the international Cassini spacecraft detected particles being accelerated to ultra-high energies, similar to the acceleration that takes place around supernova explosions.  Saturn, the second largest planet in our Solar System. Image Credit: NASA/JPL/Space Science Institute Shock waves are commonplace in [continue reading]

feb 162013
 
Rare Explosion Created the Milky Way's Youngest Black Hole

  New data from NASA’s Chandra X-ray Observatory suggest a highly distorted supernova remnant may contain the most recent black hole formed in the Milky Way galaxy. The remnant appears to be the product of a rare explosion in which matter is ejected at high speeds along the poles of a rotating star. W49B is a [continue reading]