Everyone’s childhood hero Bill Nye the Science Guy made an unexpected cameo at the Troubadour stage for this year’s Life is Beautiful festival in Vegas. He was scheduled as a speaker for this year’s festival already, but his appearance at the Troubadour stage was a real treat for those that couldn’t make it into his packed house for his official appearance.

Pasquale Rotella just posted a picture of Bill and all his bow-tie glory on stage at L.i.B., there to drop “some heavy knowledge.” While we don’t know exactly what was said, I think it’s pretty fair to assume that it was some really epic stuff. Check it out below!

???? @billnye #TheScienceGuy stopped by our stage at #LifeIsBeautiful2015 and dropped some heavy knowledge!????

Posted by Pasquale Rotella on Saturday, September 26, 2015

And Bill’s no stranger to raves, he’s been doing it for years: