Comets: News, features and articles

Comets are “snowballs” of ice and dust that formed during the birth of our solar system and have orbited the sun since. Live Science brings you the latest comet news, features and articles as astronomers track these extraordinary objects. From the city-sized comet that grew “horns” to the mega comet that may be the largest seen in recorded history, our expert writers and editors will tell you everything you need to know about them, and how to observe them when they’re visible from Earth.

Discover more about comets

—What’s the difference between asteroids, comets and meteors?