Euclid Deep Fields: The graphic shows the position of the Euclid Deep Fields (yellow). These provide particularly deep insights into regions of our universe. The overall view of the sky is an overlay of the star map from the European Space Agency's (ESA) Gaia probe from 2018 and the dust map from ESA's Planck probe from 2014. The sky is shown in the galactic coordinate system, with the bright horizontal band corresponding to the plane of our Milky Way galaxy, where the majority of its stars are located.
Euclid Deep Fields: The graphic shows the position of the Euclid Deep Fields (yellow). These provide particularly deep insights into regions of our universe. The overall view of the sky is an overlay of the star map from the European Space Agency's (ESA) Gaia probe from 2018 and the dust map from ESA's Planck probe from 2014. The sky is shown in the galactic coordinate system, with the bright horizontal band corresponding to the plane of our Milky Way galaxy, where the majority of its stars are located. (© ESA)

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The ESA Euclid mission has delivered an impressive amount of new scientific data. Supported by the German Space Agency at DLR and funded by the BMWK, the mission investigates the distribution of dark matter in the universe through gravitational lensing.

The spectacular mosaic images

The mission covered an enormous area of ​​the sky in three so-called mosaics. Each contains over 100 observations that, when combined, create a complete picture. These images show numerous clusters and more than 380,000 individual galaxies, as well as 500 candidates for gravitational lensing, through which studies .

Insight into the early phase of the universe

With just one scan, has detected more than 26 million galaxies located nearly 11 billion light-years away. Future Deep Fields scans are expected to even more distant galaxies, allowing scientists to peer back into the early days of the . Such observations could help answer fundamental questions about the origin and evolution of the .

Gravitational lensing captured by Euclid: This image shows examples of gravitational lensing captured by Euclid during observations of the depths of the universe. Light from distant galaxies is bent and distorted by normal and dark matter in the foreground. Studying these lenses can help explore the distribution of dark matter in the universe.
Gravitational lensing captured by : This image shows examples of gravitational lensing captured by Euclid during observations of the depths of the . Light from distant galaxies is bent and distorted by normal and in the foreground. Studying these lenses can help explore the distribution of in the universe. (© )

Euclid studies over ten billion galaxies: Understanding dark matter

Euclid studies over ten billion galaxies and their evolution over the past ten billion years. Understanding the role of dark matter and dark energy is crucial, as dark matter slows the expansion of the universe, while dark energy accelerates it. Little is currently known about the exact nature of these phenomena, but Euclid could help clarify them.

Significant European cooperation

The mission is an example of international scientific collaboration with significant German participation. Key components such as the instrument and the Visible Instrument () were developed in collaboration with renowned German institutes such as the Max Planck Institutes and universities. These institutions contribute significantly to data analysis and software development.

The European () is coordinating the Euclid mission as part of its long-term research program. Together with the German () and major scientific partners, aims to answer fundamental questions about the structure and evolution of the universe. Its commitment to such research projects demonstrates Europe’s role in exploring and understanding the cosmos.