aug 292013
 
Anne's Image of the Day: Irregular Galaxy NGC 3239

August 29, 2013 NGC 3239, an irregular galaxy in Leo Image Credit & Copyright: Adam Block/Mount Lemmon SkyCenter/University of Arizona (http://skycenter.arizona.edu/gallery/Galaxies/ngc3239) NGC 3239 (also known as the Loony Galaxy and Arp 263) is an irregular galaxy of some 40,000 light-years across, located only about 25 million light-years away from Earth in the constellation of Leo [continue reading]

jul 132013
 
Anne's Image of the Day: Spiral Galaxy NGC 151

July 13, 2013 NGC 151, a barred spiral galaxy in Cetus Image Credit: Adam Block/Mount Lemmon SkyCenter/University of Arizona (http://skycenter.arizona.edu/gallery/Galaxies/NGC151) NGC 151 (also known as NGC 153) is a barred spiral galaxy of about 125 thousand light-years across, located some 160 million light-years away from Earth in the constellation of Cetus (the Whale). It is [continue reading]

apr 202013
 
Anne's Picture of the Day: Spiral Galaxy NGC 5806

April 20, 2013 NGC 5806, a barred spiral galaxy in Virgo Image Credit: André van der Hoeven, ESA/Hubble & NASA NGC 5806 is a barred spiral galaxy of roughly 65,000 light-years across, located about 80 million light-years away from Earth in the constellation of Virgo (the Virgin) while it is receding from us at approximately [continue reading]

apr 092013
 
Anne's Picture of the Day: Spiral Galaxy NGC 1637

April 9, 2013 NGC 1637, a barred spiral galaxy in Eridanus Image Credit: ESO NGC 1637 is a barred spiral galaxy that lies about 38 million light-years away in the southern constellation of Eridanus (the River) while it is receding from us at approximately 717 kilometers per second. The galaxy is lit by the glow [continue reading]

feb 072013
 
Forecasting a Supernova Explosion

  Type II supernovae are formed when massive stars collapse, initiating giant explosions. It is thought that stars emit a burst of mass as a precursor to the supernova explosion. If this process were better understood, it could be used to predict and study supernova events in their earliest stages. New observations from a team [continue reading]