This is "scientifically accurate" because time travel theory suggests that a device capable of traveling through time would arrive in the same spot from which it left in the previous time period.  The earth is constantly rotating around the sun, meaning that if the time travel vehicle failed to adjust for the movement of the earth, you could conceivably end up in outer space because the earth had moved, but you had not.  But hey, let's not think too deeply about it.  Just enjoy the humor.

(via Bits And Pieces)