The co-founder of PayPal just launched a rocket, the Falcon 9, which hopes to put a space capsule, the Dragon, into orbit. We're all hoping Elon Musk's rocket works better than PayPal, because NASA wants to use it for missions.
The fallout from the Louisiana oil rig explosion is continuing to be horrendous, and efforts to stop the damage aren't looking promising. But this isn't the worst fossil fuel disaster we've ever had. Here are 10 of the worst.