# Euclid’s first survey identifies over 900 million galaxies for dark matter research

- URL: https://talkfuse.com/story/european-survey-reveals-900m-galaxies-and-possibly-secrets-of-dark-universe/
- Published: 2026-11-12T11:08:54+00:00
- Updated: 2026-11-12T11:34:09+00:00
- Original publisher: The Guardian (publisher lean: Left)
- Original article: https://www.theguardian.com/science/2026/nov/12/european-euclid-mission-reveals-900m-galaxies-secrets-dark-universe
- Topics: Europe, World

## Key points

- Euclid’s first major release identifies more than 900 million galaxies.
- It includes about 15,000 probable cases of strong gravitational lensing.
- Researchers hope lensing data will help test theories of dark matter.

## Summary

The European Space Agency’s Euclid mission has released its first major survey, identifying more than 900 million galaxies and giving researchers a detailed view across a large area of the sky. The data could help investigate dark matter and dark energy, which are thought to account for about 25% and 70% of the universe respectively.

The release covers about 14% of the sky Euclid plans to map and includes more than 60 million potential quasars. It also contains around 15,000 probable cases of strong gravitational lensing, in which a foreground galaxy bends and magnifies light from a more distant one; researchers knew of about 1,000 such cases before. Scientists expect Euclid to find roughly 170,000 by the end of its mission, and a further data release is expected next summer.

---
Summarised by TalkFuse (https://talkfuse.com/). Quote the original publisher for the reporting and link this page for the summary and discussion.