Hollywood has had a ravenous appetite for pummeling our poor planet with all manner of cosmic debris.
Whether it's those dirty interstellar snowballs we call comets, massive hunks of heavy space boulders catalogued as meteors, or annihilating asteroids, they're all intent on slamming their tonnage into our planet and causing destruction on a monumental scale. We're not fussy on the terminology for this list; if a big thing from space is hurtling towards Earth, we're counting it.
