Sky watchers of all ages will have a chance to clarify common misunderstandings of astronomical topics during the live show "Revealing Astronomical Misconceptions" at Fiske Planetarium. Sanlyn Buxner, an education specialist for Fiske Planetarium at the University of Colorado at Â鶹ӰԺ, will present the show on Tuesday, Feb. 19, at 7:30 p.m. "This is an introductory show about astronomy where we will be answering the questions you always wanted to ask, like why is the sky blue?" Buxner said.