History and Exploration
1. What did people think about comets before there were telescopes? (Hint: how did people feel about comets, and what did they think comets were?)
2. What did Sir Edmund Halley notice about certain comet sightings, and what important conclusion did he draw from this? (Hint: people did not yet know about comet orbits.)
3. Can you name any new comets you might be able to see?