In either late November or early December I saw a prompt in one of the LinkedIn groups I belong to that I couldn’t resist. Suppose you are in a conversation with someone and you tell them that you’re an amateur
It's in the headlines we read every week: Scientists have found a new planet. It's a "Hot Jupiter", and its orbit last only 4 days, skimming the surface at a scant 4.6 million miles... You read it again, and wonder, how do astronomers know how far a planet is away from its host star? It's because of Kepler's laws of planetary motion!