But when Lemon Twitter-sourced questions about the missing Malaysian Airlines plane again on Wednesday night he went another step beyond Sunday's "supernatural" event theory: he and his panel discussed the possibility of a "black hole" swallowing the jetliner.
He read out tweets that compared the mystery to "Lost" and "The Twilight Zone" before asking Mary Schiavo, a former U.S. Department of Transportation inspector general, to weigh in on the black hole theory.
"That's what people are saying," Lemon said. "I know it's preposterous — but is it preposterous you think, Mary?"
"Well, it is. A small black hole would suck in our entire universe so we know it's not that," Schiavo said. "The Bermuda Triangle is often weather. And 'Lost' is a TV show. So I think -- I always like things for which there's data history, crunch the numbers. So for me those aren't there."
"But I think it's wonderful that the whole world is trying to help with their theories and I absolutely love their theories," she added.
Australian officials said early Thursday that two large objects which may be debris from the plane were spotted a four-hour flight away from that country's southwestern coast, so perhaps Lemon and his panelists will have some more concrete evidence to pore over on Thursday night's show.