Their New Horizons spacecraft is due to fly by a small, distant, and cold world on New Year's Day and they want to come up with a name for it. As of now, it's referred to as MU69 but you have until December 1st to give it a better name. Here's what we know about MU69: it's at the outer frontier of our solar system, 4-billion miles away. There's a chance it may actually be two objects, either stuck together or orbiting one another, so two nicknames might be needed.Either way, this January 1st trip will give MU69 the record for visiting the most remote world ever explored by humankind.