Supernova Survivor (Feb 12 2004) Credit: Justyn R. Maund (IoA/Univ. Cambridge) et al., ESA Inset Left: Isaac Newton Telescope, Bottom: Hubble WFPC2, Right: Hubble ACS Beginning with a full view of beautiful spiral galaxy M81, follow the insets (left, bottom, then right) to zoom in on a real survivor. Seen at the center of the final field on the right is a star recently identified as the survivor of a cosmic cataclysm -- the supernova explosion of its companion star. #astronomy
The Mysterious Rings of Supernova 1987A (Feb 26 2012) Image Credit: ESA/Hubble, NASA What's causing those odd rings in supernova 1987A? Twenty five years ago, in 1987, the brightest supernova in recent history was seen in the Large Magellanic Cloud. At the center of the above picture is an object central to the remains of the violent stellar explosion. Surrounding the center are curious outer rings appearing as a flattened figure 8. #astronomy
Shocked by Supernova 1987A (Feb 27 2012) Image Credit: Hubble Space Telescope, NASA, ESA; Video compilation: Mark McDonald  ago, the brightest supernova of modern times was sighted. Over time, astronomers have watched and waited for the expanding debris from this tremendous stellar explosion to crash into previously expelled material. A clear result of such a collision is demonstrated in the above time lapse video of images recorded by the Hubble Space Telescope between 1994 and 2009.
A Nearby Supernova in Spiral Galaxy M100 (Mar 7 2006) Credit: FORS Team, 8.2-meter VLT, ESO One of the nearer supernovas of recent years was discovered last month in the bright nearby galaxy M100. The supernova, dubbed SN 2006X, is still near its maximum brightness and visible with a telescope toward the constellation of Berenice's Hair (Coma Berenices) #astronomy
Supernovae in the Whirlpool (Jun 11 2011) Image Credit & Copyright: R Jay Gabany Where do spiral galaxies keep their supernovae? Near their massive star forming regions, of course, and those regions tend to lie along sweeping blue spiral arms. Because massive stars are very short-lived, they don't have a chance to wander far from their birth place. Remarkably, in the last 6 years two Type II supernovae, representing the death explosions of massive stars, have been detected in nearby spiral…
Light Echoes from V838 Mon (Dec 4 2011) Image Credit : NASA, ESA, H. E. Bond (STScI) 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. Then, just as suddenly, it faded. A stellar flash like this had never been seen before. It's true that supernovae and novae expel matter out into space. But while the V838 Mon flash appears to expel material into space (...) #astronomy
A Young Supernova in the Nearby Pinwheel Galaxy (Aug 26 2011) Image Credit: D. Andrew Howell & BJ Fulton (LCOGT) et al., Faulkes Telescope North, LCOGT A nearby star has exploded and telescopes all over the world are turning to monitor it. The supernova, dubbed PTF 11kly, was discovered by computer only two days ago as part of the Palomar Transient Factory (PTF) sky survey utilizing the wide angle 1.2-meter Samuel Oschin Telescope in California. #astronomy