ESA Science & Technology - Euclid
Statistics
Euclid is an ESA mission to map the geometry of the Universe and better understand the mysterious dark matter and dark energy, which make up most of the energy budget of the cosmos. The mission will investigate the distance-redshift relationship and the evolution of cosmic structures by measuring shapes and redshifts of galaxies and clusters of galaxies out to redshifts ~2, or equivalently to a look-back time of 10 billion years. In this way, Euclid will cover the entire period over which dark energy played a significant role in accelerating the expansion of the Universe.
Announcements
Announcements
Arianespace and ESA announce the Euclid satellite's launch contract for dark energy exploration
7 January 2020
Arianespace and ESA today announced the signature of a launch services contract for the Euclid satellite – with the mission's timeframe for liftoff starting in mid-2022 from the Guiana Space Centre, Europe's Spaceport in French Guiana.
Spacecraft testing
Spacecraft testing
#1: Euclid completes thermal-vacuum balance tests
10 October 2019
This is the first entry in the Euclid Test Campaign Journal, a series of articles covering the main events during testing of the Structural and Thermal Model (STM) and Flight Model (FM) of the spacecraft.
News
News
Redesign effort pays off for Euclid's near-infrared detectors
23 July 2019
A major step towards the completion of the scientific payload on ESA's Euclid space mission has been completed, following the delivery of the detectors for the Near Infrared Spectrometer and Photometer (NISP) instrument.
Three dark fields for Euclid's deep survey
12 June 2019Scientists in the Euclid Consortium have selected three extremely dark patches of the sky that will be the subject of the mission's deepest observations, aiming at exploring faint and rare objects in the Universe. The position of the Euclid Deep Fields – one in the northern sky and two in the southern sky – was announced last week, during the...
Key milestone for Euclid mission, now ready for final assembly
18 December 2018ESA's Euclid mission has passed its critical design review, marking the successful completion of a major phase in the progress of the project.
Euclid progresses with primary mirror delivery
15 November 2018In order to observe billions of faint galaxies and investigate the nature of the dark Universe, ESA's pioneering Euclid mission will require state-of-the-art optics. The first optical element to be delivered, the telescope's primary mirror (M1), has arrived at the premises of Airbus Defence & Space in Toulouse.
Detector delivery marks another Euclid milestone
26 April 2017ESA's Euclid mission has passed another important milestone with the delivery of the first three state-of-the art detectors for the Near-Infrared Spectrometer and Photometer instrument.
Spotlight on ...
Spotlight on ...
Euclid animation - 360 degree view
31 October 2019
Animation of the Euclid spacecraft, showing different elements such as the telescope, payload module and solar panels.
From Our Partners
From Our Partners
Scientists of the Euclid Consortium announce the release of the largest simulated galaxy catalogue ever built
7 June 2017Euclid will map the geometry of the dark Universe by observing thousands of millions of galaxies. To prepare for the scientific exploitation of the real data, a team of scientists of the Euclid project have developed the largest ever simulated galaxy catalogue: the "Euclid Flagship" mock galaxy catalogue.
Featured Publications
Featured Publications
Euclid Industry Day - Presentations
3 March 2014Presentations from the Euclid Industry Day, held at ESTEC on 15 January 2014, are available to download.
Euclid definition study report (Red Book)
29 September 2011This report, the so-called Red Book, describes the outcome of the mission definition study (Phase A) for the Euclid mission.
Euclid Mission Assessment Study - Executive Summary (Thales Alenia Space)
22 January 2010The Euclid Mission Assessment Study is the industrial part of the Euclid assessment phase. This document summarizes the results of one such study performed between September 2008 and September 2009 by a team led by Thales Alenia Space (I) and including Thales Alenia Space (F), Kayser-Threde and Deimos Space.
Euclid Mission Assessment Study - Executive Summary (EADS Astrium)
22 January 2010The Euclid Mission Assessment Study is the industrial part of the Euclid assessment phase. The study has been performed by Astrium from September 2008 to September 2009 and is intended for space segment definition and programmatic evaluation. The prime responsibility is with Astrium GmbH (Friedrichshafen, Germany) with support from Astrium SAS...
Technical Review Report - Euclid
14 December 2009Reference: SRE-PA/2009/051; Issue 1, Revision 2. This technical review report for the Euclid candidate mission presents the outcome of ESA's internal review of this M-class candidate mission in the Cosmic Vision 2015-2025 plan.
