Astronomers have since found indirect evidence for.
That makes them appear perpetually black to the rest of the universe.. Astronomers have since found indirect evidence for these entities, which are popularly known as black holes because of the "cosmic censorship conjecture." This conjecture is that "realistic" singularities — meaning those that can be formed in nature — must always hide within a barrier known as an "event horizon" from which light can never escape.
Original text search at: www.lockergnome.com/news/2007/09/