Last night, a giant asteroid was supposed to streak by the Earth, close enough for us to catch a glimpse as it zipped by. Except it never showed, and now astronomers say they have no idea just where the 900-foot asteroid has gone.
Astronomers are asking for help in finding the missing rock:
Tip to Instapundit.
UPDATE: Ah, that's what happened to it:
I'm bitterly disappointed that the Atari system I bought over Christmas colorized Asteroids. WTF.
UPDATE: Thanks to Pseudopolymath for the link. We may need to amend the conservation of mass law to "Matter can neither be created nor destroyed, only changed--or perhaps misplaced for a bit."