We’re missing an entire kind of asteroid

Not all asteroids in the solar system reside in the asteroid belt. The main asteroid belt between Mars and Jupiter does holds most of our solar system’s asteroids, at least several million, but there are many other smaller groups of asteroids. Almost every gravitationally stable region of the Solar System has at least one known object orbiting there – all of them, except one. For example, there are the thousands of known “Near-Earth Asteroids” that orbit, as you might expect, near Earth. Then there the “trojan asteroids” that trail ahead of and behind several of the solar system’s major planets. Jupiter alone has over 10,000 known trojans, but every major planet from Venus through Neptune has at least one that we’ve discovered. And beyond Jupiter, there are icy objects like the centaurs, the Kuiper belt, the scattered disk, and the Oort cloud – though these are technically not considered asteroids. But there’s one place in the Solar System where we think there could be asteroids, but…