Euclid

Oct 15, 2024

The Euclid mission reveals new images from an immense mosaic of 208 Gigapixels

Zoom in on the first page of ESA's Euclid cosmic atlas

On 15 October, ESA's Euclid space mission revealed the first piece of its grand map of the Universe, showing millions of stars and galaxies. This first piece of Euclid's survey was revealed at the International Astronautical Congress in Milan by ESA Director General Josef Aschbacher and Director of Science Carole Mundell.

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Jun 20, 2024

Jean-Charles Cuillandre receives the Euclid Consortium STAR Prize 2024 – Senior Scientist Award

The Euclid Consortium has awarded the Euclid Consortium STAR 2024 prize, in the Senior Scientist category, to Jean-Charles Cuillandre, a researcher in the Astrophysics Department (DAp) of the IRFU at CEA Paris-Saclay, for his customized pipeline that generated Euclid's magnificent "Early Release Observations" (ERO) public images, seen by billions of people, and kick-started the scientific exploitation of the data.

May 23, 2024

First scientific results and exclusive new images from the Euclid space telescope

The Euclid collaboration today publishes five reference papers on the mission and ten scientific papers based on the first images unveiled to the public in November 2023, as well as the new images presented today by ESA. This phase of preliminary observations conducted last fall provides a glimpse into the telescope's exceptional performance.

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Nov 07, 2023

Euclid's "Early Release Observations", portraits of the Universe like no other!

This series of five images demonstrates the satellite's exceptional performance for its cosmological mission!

To reveal the influence of the dark components of the Universe, over the next six years Euclid will be observing the shapes, distances and movements of billions of galaxies. This mapping will cover periods going back to the last 10 billion years of cosmic history, in order to gain a better understanding of where, when and how dark energy and matter - two key components of the universe that are still a mystery - act.

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Jul 31, 2023

Images from the first commissioning tests of Euclid!

Euclid's two instruments have captured their first test images. These fascinating results indicate that the space telescope will achieve the scientific objectives for which it was designed, and perhaps even more.

The Euclid satellite, launched from Cape Canaveral on July 1st, is traveling to reach its orbit at the second Lagrange point, which it should reach in early August. This transit time has been used to commission Euclid, checking the satellite's services such as communications, power, and pointing, and then the two instruments, VIS and NISP, as well as fine-tuning the telescope's focus.

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Jun 01, 2021

Valeria Pettorino receives the MCAA award for career excellence

Valeria Pettorino was awarded with the 2020 MCAA (Marie Curie Alumni Award) for her outstanding career (CEA/IRFU, Saclay) for her work in the Euclid collaboration and her involvement in the scientific community through various activities such as mentoring, event organisation, communication and more recently science diplomacy. This award is presented by the MCAA association, which is an international network of all researchers who have received a Marie Curie Fellowship.

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Valeria Pettorino receives the MCAA award for career excellence

Feb 13, 2020

Optimizing Euclid: cross-correlation between observables

To measure cosmological parameters, the Euclid space telescope will use two main probes: gravitational lensing (Weak Gravitational Lensing) and galaxy distribution (Galaxy Clustering). These measurements will allow us to study dark energy and dark matter, which affect the growth of cosmic structures and the accelerated expansion of the Universe.

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Jan 23, 2020

Euclid: Irfu delivers the VIS Focal Plane

Arrived safely. The focal plane of the visible imager on the Euclid satellite has just been delivered by Irfu to the laboratory responsible for the instrument (MSSL/UK) to continue its integration into the satellite, which is scheduled to take off in 2022. The first studies of this focal plane have been carried out at Irfu since 2010 and after almost 10 years of development and testing, it was fully tested by Irfu in 2019. This Focal Plane is composed of 36 CDDs totalizing more than 600 million pixels.

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Euclid: Irfu delivers the VIS Focal Plane

May 22, 2018

Image analysis to better reveal dark matter

New statistical methods reveal the finest details of the Universe

A team led by University College London (UCL), in collaboration with the Astrophysics Department of CEA-Irfu, has significantly improved the analysis of dark matter maps in the Universe with new methods of data analysis. The maps produced by this analysis demonstrate the power of these new innovative methods for analyzing future large data sets such as those expected from the upcoming EUCLID cosmological mission. These results are published in the MNRAS journal.

Nov 28, 2017

Delivery of the flight model of the NISP camera cryomotors for the Euclid telescope

The Near IR Spectrometer Photometer (NISP) is an infrared spectro-photometer that will equip the Euclid Space Telescope (launch planned for 2021) to better understand dark matter and dark energy. After three years of R&D leading to a qualification model, and 6 months for the construction and testing of the flight model, the two NISP cryomotors successfully passed all the acceptance tests in November.

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Delivery of the flight model of the NISP camera cryomotors for the Euclid telescope

Jul 28, 2015

Decoding the Universe from gravitational distorsions

Cosmology with cosmic shear observations

In a review article in "Reports on Progress in Physics", Martin Kilbinger of Astrophysics Department - AIM Laboratory at CEA-IRFU presents a comprehensive assessment of the results obtained from observations of the cosmic shear in the last 15 years. The cosmic shear effect has been measured for the first time in 2000. This effect is a distortion of the images of galaxies under the effect of gravity of the intervening clumps of matter.

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Dec 15, 2014

EUCLID now under construction

The next European cosmology mission starts construction

The space mission EUCLID, intended to map the universe in order to understand the influence of dark matter and dark energy, just passed the implementation phase. The EUCLID mission of the European Space Agency (ESA), involving scientists from CEA-IRFU, is to be launched in 2020 by a Soyuz Russian rocket. It aims to measure the position and shape of over a billion galaxies up to distances of ten billion light years.

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Division of Electronics, Detectors and Computing for Physics (DEDIP)

Institute of Research into the Fundamental Laws of the Universe