Overview

Two possible spacecraft concepts

Euclid is an ESA-led mission to map the geometry of the dark Universe. Using two cosmological probes—weak lensing and baryonic acoustic oscillations—in a wide-field survey, Euclid will precisely measure the growth of large-scale structure and the expansion history of the Universe.

Mission Objectives:

1. Investigate the properties of dark energy by accurately measuring both the acceleration and the variation of the acceleration at different ages of the Universe


2. Test the validity of general relativity on cosmic scales


3. Investigate the nature and properties of dark matter by mapping the 3-dimensional dark matter distribution in the Universe


4. Refine the initial conditions at the beginning of our Universe, which seed the formation of the cosmic structures we see today