An Oldie But Goodie
Submitted by chandra on Tue, 2009-09-01 11:44Last week, we released the Chandra image of an object known as Cygnus X-1. At first glance, Cygnus X-1 might not look that important – even with Chandra’s excellent X-ray vision – but this is one case where it’s good not to judge a book by its cover.