European Space Agency Space Exploration & Science Missions

ESA’s Euclid telescope discovers its first previously unknown comet

Euclid identified comet C/2026 S1 in observations made Sept. 16–24, 2026, marking the space telescope’s first discovery of a previously unknown comet. The mission was designed to map billions of galaxies and investigate dark matter and dark energy, rather than search for comets.

Discovered 2026-10-19T07:34:07.517120-07:00 | 2026-10-19T07:34:07.517120-07:00

Briefing

What Hype is tracking

The discovery shows Euclid’s survey observations can also reveal objects in the solar system, beyond the mission’s core cosmology goals.
C/2026 S1 was found in a region described as among the solar system’s least observed, adding an incidental science result to Euclid’s observations.

Reported By

astrospace.it Universe Today raumfahrer.net elpais.com