The asteroid dubbed ‘3200 Phaethon‘ is poised to come within 2 million miles of Earth around X-mas time. It is reported that this particular space-rock is about half the size of the asteroid that wiped out Earth’s ecology eons ago.
While the current trajectory of this rock does not pose a high impact risk, it is humbling to acknowledge that the disposition of our existence is one of serendipitous statistical luck. The Earth has been pummeled in the past by cosmic projectiles. It is thereby reasonable to expect our luck will run out given enough time.