1) Refute yes, support no

2) By "is it falsifiable," do you mean his claims or the tests? His claims are definitely falsifiable but at the same time a test is pretty falsifiable as well unless it is carried out by some accredited organization.

3) Pseudoscience

Erich von Daniken needs to go home and take his meds.

I would not dignify his claims as even pseudo-science. Given that he is a convicted embezzler, we can only assume he writes fiction masquerading as fact for pecuniary reasons. He doesn't have a hypothesis to refute.

Not even pseudo science. Just plain ****.

Right up there with astrology, crystals, pyramid power, and 2012.

And others believe the moon is made of green cheese. Is there a word: falsifiable?