Astronomers Discover 2,674 Dwarf Galaxies Using Euclid Space Telescope

The European Space Agency’s (ESA) Euclid space telescope has been providing valuable data from the depths of space for almost two years. With its help, a team of astronomers, led by Francine Marleau, used the telescope to discover 2,674 dwarf galaxies and create a catalogue of their candidates.

Using a semi-automatic method, the scientists analyzed 25 Euclid images to identify galaxy types, distances, stellar masses, and environmental contexts. The findings reveal that 58% of the identified galaxies are elliptical, while 42% are irregular, with some containing globular clusters, galactic nuclei, or blue compact centers.

The study provides insights into the formation and development of dwarf galaxies, a critical area for testing cosmological models. Marleau is investigating the role of dark matter and dark energy in galaxy formation, which will help scientists better understand the universe’s expansion and structure.

The Euclid space telescope was launched in July 2023 and will create the largest and most accurate 3D map of the universe over the next few years. With data from over 2,000 scientists from 300 institutes and laboratories, researchers are on the verge of discovering more about dark matter and dark energy, two mysterious components that make up the universe.

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Source: https://phys.org/news/2025-03-astronomers-dwarf-galaxies-euclid-telescope.html