Ways the world could end: NASA edition

Much has been made about the “impending” end of the world in 2012. There are many ways life on Earth - or in some cases, the Earth itself - might be destroyed. Here are seven scientific theories as to how that might happen.

2. Black hole: Gravity gone wild

3. Supervolcano: Not your traditional eruption

4. Cosmic alignment: Shadow of a dark rift

5. Solar storm: Time to get out the sunblock

6. Planetary smash-up: A high-speed collision in space

7. Supernova: When the sky explodes

8. Asteroid hit: What’s good for the dinosaurs…?

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