Singularity Resolution in Loop Quantum Gravity

By now there are several examples in loop quantum gravity in which effects of quantum geometry became important, dominate the Planck regime and resolve classical singularities. The resulting quantum space-times are typically significantly larger than the original classical space-times. In simple examples, the physics of these quantum extensions has shed considerable light on issues such as the quantum nature of the big-bang and information loss puzzle. I will present a few examples to illustrate this growing area.