The data collected by Euclid will be instrumental in addressing several fundamental questions in astrophysics. For instance:
What is the nature of dark energy? By mapping the universe’s expansion history, Euclid will provide insights into the properties of dark energy, which is driving the accelerated expansion of the universe. How is dark matter distributed? Euclid will create a detailed 3D map of the dark matter distribution by observing the gravitational lensing effect, where light from distant galaxies is bent by the gravitational field of dark matter. What are the properties of the early universe? By studying the large-scale structure of the universe, Euclid will help in understanding the initial conditions that led to the formation of galaxies and cosmic structures.
