Euclid mission data release spans more than 900 million galaxies

On November 12, 2026, ESA reported that the Euclid space telescope released its first major batch of data named DR1-Foundation. Reuters reported that this massive data release spans more than 900 million galaxies. According to The Guardian, the European survey reveals 900 million galaxies.

Phys.org and ESA stated that Euclid offers the best-ever 3D map of the universe to date, laying the foundation for this map. New Scientist described the event as a vast data dump from the Euclid space telescope that reveals stunning galaxies. Space reported this as the first look into the dark universe, questioning if a dark matter breakthrough is coming.

According to ESA, these observations were gathered over roughly one year from spring 2024 to spring 2025. During that time, the Euclid Wide Survey covered around 1900 deg2 of sky. ESA noted that while very large, this represents just 14 percent of the mission's target for the entire six-year survey.

ESA explained that the release includes data gathered as part of the Euclid Wide and Deep Surveys. This data forms the foundation of many forthcoming scientific studies of the Universe. The all-sky view provided by ESA is an overlay of ESA Gaia's star map from its second data release in 2018 and ESA Planck's dust map from 2014.