NASA has confirmed that an object has again collided with Jupiter, leaving an Earth-sized scar. The scar was initially noticed by amateur astronomer Anthony Wesley on the 19th (good for you!), and NASA followed up on his tip.
It's cool to be reminded that the entire Earth could be wiped out in an instant, with no warning. The problem of induction aside, it is strange how the default mode for most of us is to be positive that the things we are familiar with, though they may, perhaps, slowly deteriorate, will never undergo a catastrophic change. We are sure the biosphere will not be wiped out by a cosmic impact or environmental tipping point, we are sure that the splendor of our empire will not come crashing down, we are sure that none of our loved ones will suddenly become a different person on us, and we are damn sure we ourselves will never get cancer or have a stroke. All of these things are impossible, not because we have sat down and evaluated the probabilities—in some cases, we already agree that the probabilities are significant—but because they are unthinkable.