Sounds like the kids at Caledonia High School know their science!

A group of students appeared Conan O'Brien's Show Wednesday night to challenge the show on an astrological issue. The mistake, they say, happens every night on the show. 

In a segment called "Fan Correction", Conan and crew invite viewers to find mistakes on the show.

Conan boasts that not once, out of hundreds of times, has anyone ever found an error...

A post on Caledonia Community School's Facebook page explains the student's issue with Conan's set: The background has a full moon that doesn't jive with the time they are trying to portray.

Hello All,I thought I might share some fun news. Wednesday night a group of CAL students made it onto the Conan O'...

Posted by Caledonia Community Schools on Friday, May 8, 2015

Hmmm... I wonder how Conan explains that one...

Watch the Caledonia kids make their case and Conan come back at 'em with the help of a celebrity friend here!

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