A new word for the lexicon

We recorded some Stephen Hawking specials in which he sets up theoretical problems and then has people solve them to gain an understanding of the universe.  The first show we saw addressed the possibility of time travel.  The one we watched tonight was about the possibility of life on other planets.  The people addressing the theoretical questions are “ordinary” (i.e., not Stephen Hawking genius level), but not stupid.  And yet, one of them mentioned in her analysis of the situation that the planets orbitate around the sun.

Yes, orbitate.  Where do these people learn English?!