Welcome to the Euclid Science Operations Centre

 

Euclid is a space-borne survey mission dedicated to investigate the origin of the Universe's accelerating expansion and the nature of dark energy, dark matter and gravity. Euclid will characterise the signatures of dark energy on the 3D distribution of cosmic structures. In 2012, Euclid was approved as the second Medium Class mission (M2) in the Cosmic Vision Programme. Euclid was launched on 1 July 2023 with a SpaceX Falcon 9 from Cape Canaveral.

The mission is optimised to measure apparent shapes of galaxies, which are distorted by gravitational deflection of light due to dark matter concentrations, and to measure galaxy clustering, that is the non-random distribution of galaxies in the Universe resulting from the action of gravity. Euclid demands very high precision measurements and the ability to survey the sky at visible and near-infrared (NIR) wavelengths. Such requirements cannot be met from the ground, and calls for a wide-field Visible/NIR space mission. For more information see our SciTech site, and in particular the "red book".

 

 

Latest News

 

 

Euclid starts de-icing 19-Mar-2024
Operations begin to de-ice Euclid's vision
A few layers of water ice – the width of a strand of DNA – are starting to impact Euclid's vision. After months of research, Euclid teams across Europe are now testing a newly designed procedure to de-ice the mission's optics.

Update 20 March: First results confirm successful operations Euclid's sharp vision is restored. The initial analysis of Euclid's data validates the de-icing approach devised by the team. A more in-depth analysis of the results is ongoing and an update will follow in the coming days.
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Dark Universe Survey 14-Feb-2024
Ready, set, go! Euclid begins its dark Universe survey
Today, ESA's space telescope Euclid begins its survey of the dark Universe. Over the next six years, Euclid will observe billions of galaxies across 10 billion years of cosmic history. Learn how the team prepared Euclid in the months after launch for this gigantic cosmic quest.
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Astro Awards 2024 14-Jan-2024
Congratulations to ESA's Euclid team for the recognition they received at the Astro Awards 2024!
On January 14, 2024 at the Paramount Theatre, Austin, Texas, the Everyday Astronaut team hosted their first in-person event and awards show. Their mission, to honor and celebrate the revolutionary humans behind the hardware and missions by inviting them to accept an award IN REAL LIFE! And Euclid was there! Watch the video (from minute 45)
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Space Team Europe for Euclid 28-Nov-2023
Space Team Europe for Euclid: Henk Hoekstra
Henk Hoekstra, professor of observational cosmology at Leiden University, the Netherlands, shares his professional trajectory linked to weak gravitational lensing, a technique used by ESA's Euclid mission.

Henk explains how Euclid will reveal the dark side of the Universe. He uses enlightening examples involving a swimming pool and other terrestrial objects. Listen to Henk Hoekstra to understand how Euclid can make the invisible visible.
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Horsehead Nebula 07-Nov-2023
Euclid's view of the Horsehead Nebula
Euclid shows us a spectacularly panoramic and detailed view of the Horsehead Nebula, also known as Barnard 33 and part of the constellation Orion.

At approximately 1375 light-years away, the Horsehead - visible as a dark cloud shaped like a horse's head - is the closest giant star-forming region to Earth. It sits just to the south of star Alnitak, the easternmost of Orion's famous three-star belt, and is part of the vast Orion molecular cloud.
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Globular cluster NGC 6397 07-Nov-2023
Euclid's view of globular cluster NGC 6397
This sparkly image shows Euclid's view on a globular cluster called NGC 6397. Globular clusters are collections of hundreds of thousands of stars held together by gravity.

Located about 7800 light-years from Earth, NGC 6397 is the second-closest globular cluster to us. Together with other globular clusters it orbits in the disc of the Milky Way, where the majority of stars are located.
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