Anne’s Image of the Day: Galaxy Cluster Abell 2261

 Anne's Image of the Day
sep 072013
 
Anne's Image of the Day: Galaxy Cluster Abell 2261

September 7, 2013 Abell 2261, a galaxy cluster in Hercules Image Credit: NASA, ESA, M. Postman (STScI), T. Lauer (NOAO), and the CLASH team Abell 2261 is a massive galaxy cluster that lies some three billion light-years away from Earth in the constellation of Hercules (after a Roman mythological hero). Abell 2261 is speeding away [continue reading]

Giant Galaxy Stirred Up By Black-hole Mischief?

 Astrophysics, Cosmology
okt 262012
 
Giant Galaxy Stirred Up By Black-hole Mischief?

  Astronomers using NASA’s Hubble Space Telescope have obtained a remarkable new view of a whopper of an elliptical galaxy that may have been puffed up by the actions of one or more black holes in its core. The giant elliptical galaxy, dubbed A2261-BCG,  in the center of this image, taken by NASA’s Hubble Space Telescope, [continue reading]