The Cosmos According to Holst
One of the complaints people are making —now that Pluto has been demoted from planet to dwarf— is that this will obsolesce our children’s science textbooks.
Nonsense.
As a former schoolteacher, I can tell you for a fact that an outdated textbook is a perfect opportunity for any teacher worth his salt to supply the update himself. It adds to one’s authority and teaches children the proper skepticism to bring to any book.
Keep on turning, Pluto. We still love you. NASA does, for sure.