First step in preventing Armageddon: Spot the asteroid before it obliterates all life on earth. The PS1 Telescope sits atop a Hawaiian mountain with a 1.4-gigapixel digital camera to ensure we get the Ben Affleck-approved ending, not Deep Impact.
The Pan-STARRS, a new 1.4 gigapixel telescope built to spot asteroids, has found a potentially dangerous asteroid headed for Earth. Luckily, we don't have to worry just yet. It won't hit us 'til 2098.