And the question of alien presence in pre-Columbian America continues! Why is is that the Mayans had advanced astronomy, mathematics, and even aerospace engineering, and yet they were defenseless against germs? Is it like the War of the Worlds? Why didn't their alien overlords protect them? Why weren't they able to activate the crystal skulls in time?

More evidence of Pacal's space flight:



http://alienexplorations.blogspot.com/2012/02/pacal-votan-tomb-lid-ancient-aliens.html

To boldly go where no artificial civilization has gone before!