Science

Euclid discovers its first previously unknown comet

C/2026 S1 (Euclid), confirmed on Oct. 8, is about 1.3 billion kilometers from Earth and follows an orbit lasting thousands of years.

A composite of eight Euclid VIS exposures of Comet C/2026 S1 (Euclid).
A composite of eight Euclid VIS exposures of Comet C/2026 S1 (Euclid). ESA · CC BY-SA 3.0 IGO

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