jan 122013
 
The Largest-Known Spiral Galaxy Revealed

  The spectacular barred spiral galaxy NGC 6872 has ranked among the biggest stellar systems for decades. Now a team of astronomers from the United States, Chile and Brazil has crowned it the largest-known spiral, based on archival data from NASA’s Galaxy Evolution Explorer (GALEX) mission, which has since been loaned to the California Institute [continue reading]

jun 092012
 
Cosmic Dance Produces New Galaxy

  A “tidal” dwarf galaxy (TDG) has been detected by a team of astronomers from Queen’s University, the Royal Military College of Canada (RMCC) and their world-wide collaborators. The galaxies NGC 3169 (left) and NGC 3166 (right) in the constellation Leo. (The newly discovered baby-sized galaxy is not visible in this image, released on April [continue reading]