The solar system appears to have a new ninth planet. Today, two scientists announced evidence that a body nearly the size of Neptune—but as yet unseen—orbits the sun every 15,000 years.

[SamuelRSmith]

It's barely like a set of carkeys floating around up there. How have they only just discovered it?

Damned lazy half-assed astronomers. They got one job: staring in a telescope, still taken 'em centuries to find this thing.