Anyone know anything about the whol Miyan's had alien contact stuff?

they showed a bunch of cave drawings of beings that had some sort of helmet on and had little statues of things that looked exactly like a plane or rocket. they also had a sculpture of a person with what looks like an ancient version of an astronauts helmet. it had ons on it and everything. and then it showed their giant kinds burial with a chiseled tomb stone of him in what unmistakably looks like the pit of a space shuttle. his hands are doing something as if messing with knobs and his feet are on some sort of pedals and there is something going into his nose which they said looked like oxygen. and they found maps of the world that were impossible to create given their technology and lack of knowledge of the other land mes. they had rivers, mountains, and even antarctica on their, when antarctica hadnt even been discovered yet.....they also say the 7-8 ft king could have been an E.T. and thus why they worshiped him. this makes me think aliens do exist and maybe the mayan calendar could have some significance if it was given to them thru whatever E.T. visited them.....does anybody else know much about this? if so plz enlighten me.