Bill Nye Defends 'Star Trek' Buddy in Bizarre, Unprompted Rant

11/5/2014 7:30 AM PST

Bill Nye -- Defends 'Star Trek' Buddy in Bizarre, Unprompted Rant

EXCLUSIVE

No one asked Bill Nye about his "Star Trek" pal's messy divorce ... or about Nye's ongoing battle with his former fiancée -- but the Science Guy couldn't wait to tell us all about it.

You'll recall ... Nye ended up in the middle of "Star Trek Voyager" star Robert Picardo's divorce -- because Picardo's estranged wife Linda claimed he and Nye were having an affair.

Nye himself has been fighting with his former flame, Blair Tindall, over $57,000 she owes him stemming from their split in 2006. 

Well, according to Nye ... there's been a major development in this war of exes.

Hint: it's bad news for the fellas, but Bill was dying to spill the beans, anyway.