Corrected entry: In the opening scene the alien mother ship is seen passing over the moon. Judging by the movement of the shadow it is travelling fairly slowly, of the order of 3000 to 4000 miles per hour. At this speed it would take the best part of 4 days to reach the earth, not a matter of hours.
Kimberly Mason
11th May 2011
Correction: We obviously have NO idea how these ships operate, who is to say that they slowed down, then sped back up knowing their mass might affect the Moon?
Kimberly Mason