If We Had No Moon (1999)

Without the moon humans wouldnt exist Life if it had started at all would be in its earliest stages of evolution Days would last four hours winds would blow at hurricane force and there would be a dense and toxic atmosphere resembling that of Venus Around 50 million years after the formation of the solar system a Marssized planet called Theia hit the newly formed ProtoEarth The blast sent planetary material from the pair into orbit around earth which eventually formed the Moon In this onehour special viewers learn what Earth was like before the moon creating impact and what Earth would have been like if the moon had never existed