How Halley’s Comet sightings changed history over the past 2500 years
Ancient Greek texts reveal the earliest recorded sighting of the solar system’s most famous comet 2,500 years ago. Since then, Halley’s Comet has repeatedly cameoed in history, getting credit for toppling armies, birthing empires, and even killing Mark Twain. Halley’s Comet is the most famous of the short-period comets, which are comets that complete their…
