Seriously though, this sounds like a simple case of the so called "Transient G" effect. I'm sure they will figure it out within about six and a half years.
Aah! A fellow Monty Python fan! They'll always be near the top of my list. I think I'll throw in my Holy Grail tape tonight. Haven't watched it in about 2 or 3 years.
Check out this wacky physics site. They take the question very seriously!
Did they factor in the Monoliths in their equations?