1. By Angelica L. McNerny BLACK HOLES IN BRIEF: A LOOK AT CURRENT THEORIES

2. SUMMARY What is a black hole? Hawking’s Conjecture Wormhole theory Fluctuations in the event horizon Black hole residue Where are they? Questions

3. WHAT IS A BLACK HOLE? Point in space massive enough to devour light itself Has an event horizon Two kinds Stellar- mass Supermassive

4. HAWKING’S CONJECTURE Stephen Hawking suggests that black holes evaporate This leads to the destruction of information Throws physics on its head

5. WORM HOLE THEORY Information travels through the black hole and out a worm hole in another universe Implies information from other universes enters our own Leads to a chaotic conclusion

6. FLUCTUATING EVENT HORIZON Suggests event horizon is not necessarily stable Takes into consideration the evaporation of a black hole Allows information to periodically escape

7. BLACK HOLE RESIDUE Particles left over from evaporated black holes Three dimensional Would contain immense amount of information Many scientists disagree with it Quantum physics says this would destroy the universe Scientists suggest it is more likely that we are just not looking close enough

8. WHERE ARE THEY? One at the center of the Milky Way Found using Keck and European Southern Observatory’s New Technology telescopes Observed movement of stars to deduce its existence

9. SAGITTARIUS A*

10. QUESTIONS