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Comets · 5 guides

Comets

Ancient ice from the Solar System's deep freeze, and visitors from beyond it.

Start with Halley's Comet The most famous comet: humanity's 76-year appointment with a piece of the ancient Solar System.

Comet

Comet Hale–Bopp The Great Comet of 1997 stayed visible to the naked eye for a record 18 months.

Comet

Comet 67P/Churyumov–Gerasimenko Humanity's robots orbited this rubber-duck comet for two years and landed on it.

Comet

Comet NEOWISE The lockdown comet was 2020's gift to a locked-down planet's evening skies.

Comet

3I/ATLAS A visitor from another star, and the third interstellar object ever caught crossing our Solar System.

5 in-depth guides, with every fact labeled and sourced. Star any of them to build your own collection.

Looking for something we haven’t written up yet? The exoplanet database holds thousands more worlds, and Ask the Atlas can answer from everything we have.