Black holes may harbour their own universes 15:16 31 October 2007 NewScientist.com news service Mason Inman Black holes may contain whole universes inside them, according to a theory called loop quantum gravity (Illustration: XMM-Newton/ESA/NASA) When matter gets swallowed by a black hole, it could fall into another universe contained inside the black hole, or get trapped inside a wormhole-like connection to a second black hole, a new study suggests. What's inside a black hole is one of the biggest mysteries in physics. The theory that predicted black holes in the first place – general relativity – says that all the...