Yes, HST is a rainbow machine.
J. K. Rowling drew upon star lore to name some of her characters, and this seems like a great excuse to talk about a few of the sky's wonders.
Ultima Thule is the first known "contact binary" small body in the solar system.
KM dwarfs are excellent places to search for life. The minute we build starships, we should stuff a few geo-astro-biologists on board and find out more.
... sorting truth from fiction takes mental work and time. Learning will occur.
"Spectroscopy," I might answer.
"Huh?" one might reasonably reply.