For 100 years, we are amazed at the planetum. Here’s a short history of how people carried the stars at home
This article was originally published in The conversation. The publication contributed the article on the space.com’s Expert Sounds: Op-ed & Insights. Think of it: A small audience is quietly inserted into a dark room. They were amazed, as a good night sky shone above. They wonder – as much as they do – what trick…