aug 272013
 
Anne's Image of the Day: Spiral Galaxy Messier 58

August 27, 2013 Messier 58, a spiral galaxy in Virgo Image Credit & Copyright: Adam Block/Mount Lemmon SkyCenter/University of Arizona (http://skycenter.arizona.edu/gallery/Galaxies/M58) Messier 58 (also known as NGC 4579) is a barred spiral galaxy of some 107,000 light-years across with an estimated mass of 300 billion solar masses, located approximately 68 million light-years away from Earth [continue reading]

mrt 202013
 
Anne's Picture of the Day: Spiral Galaxy NGC 4639

March 20, 2013 NGC 4639, a barred spiral galaxy in Virgo Image Credit: A. Sandage (Carnegie Observatories), A. Saha (Space Telescope Science Institute), G.A. Tammann, and L. Labhardt (Astronomical Institute, University of Basel), F.D. Macchetto and N. Panagia (Space Telescope Science Institute and European Space Agency) and NASA NGC 4639 is a barred spiral galaxy [continue reading]

feb 082013
 
Anne's Picture of the Day: Interacting Galaxies Arp 116

February 8, 2012 Arp 116, a pair of interacting galaxies in Virgo Image Credit & Copyright: Adam Block/Mount Lemmon SkyCenter/University of Arizona  (http://skycenter.arizona.edu/gallery) Arp 116 is a pair of interacting galaxies composed of a giant elliptical galaxy known as Messier 60, and a much smaller barred spiral galaxy, NGC 4647, located in the Virgo constellation. [continue reading]

jan 202013
 
No Galaxy Is An Island, Entire of Itself

  KIPAC scientists use X-ray observations show how galaxies shape their environment, and vice-versa   A major component of our understanding of galaxy evolution that has remained elusive is the influence of the local environment on the galaxy, especially when discussing galaxies in large clusters. Galaxy clusters, the largest gravitationally bound objects in the Universe, [continue reading]