At www.dailygalaxy.com/my_weblog/2013/01/black-holes-of-the-universe-growin… … scientists have assumed black holes in the hearts of galaxies increase mass in step with the growth of the host system. New observations seem to indicate this idea is false. Black holes grow faster than imagined – but what are they feeding on? It seems that for each 10 times increase in galaxy size there is a 100 times increase in the size of the black hole.
At www.dailygalaxy.com/my_weblog/2013/01/unsolved-mystery-of-the-1987-super… … a supernova exploded in 1987 in the Large Magellanic Cloud and attracted a lot of telescope attention. A huge circular disc, or ring of bright material, can now be seen around the dead star.