Part of the mission of the LHC is to create micro black holes to study the physics of these anomalous objects in a laboratory environment. There are those who say the results will be the creation of a black hole that will suck the whole planet into itself. Most physicists say the holes will degenerate too quickly.
While they repair the LHC after the first failed attempt that broke it, scientists have been redoing the math to see if they missed anything. New research has shown that these black holes could last for longer than a second. Will that be too long for survival?
Once more arXiv.org/abs/0901.2948 has the brief and the PDF of the study.
There are also more easily understood explanations and hundreds of comments to further your knowledge of this “sucking” problem on The arXiv Blog.