On February 15th, when I say duck, everyone crouch down, OK? The day after Valentine's Day, Earth will have a close encounter with a big rock hurtling through space called DA14. It will come close enough to be closer than satellites that are at geosynchronous orbit, which is pretty close, but it will NOT hit the Earth. It's big enough that if it did, it could likely do a bit of damage. However, it will just pass harmlessly past us. Watch the video for details.