Rejoice, because you are alive: An asteroid named 2009 TM8 just passed only 216,000 miles from Earth, racing at 18,163mph. That’s closer than the moon. But don’t worry, there’ll be plenty of opportunities to panic, says the JPL:
If it’s typical density, it would create a 4 kiloton explosion in the Earth’s atmosphere if it were to hit, which of course it won’t. You’d expect an object of this size to fly within the orbit of the moon every few days or so.