Nadia slapped herself in the forehead. "Of course, we did study them before, didn't we?" She shook her head - even the moons would have made a better answer, he thought sadly.

"The Oort cloud is not an object in itself, however, but a classification. It is thought that other stars are likely to possess Oort clouds of their own, and that the outer edges of two nearby stars' Oort clouds may sometimes overlap, causing the occasional intrusion of a comet into the inner solar system. We only found one Oort Cloud. The Oort cloud in question's name is 90377 Sedna, and it is named that way because it's suspected the planetoid Sedna is part of the Oort cloud."

"Another possible answer to that question might be 2000 CR105 "