Launched in July 2023, the Euclid mission aims to create a 3D map of the universe by observing two billion galaxies, which will help scientists understand its cosmic history.

The "first page" of an incredible cosmic atlas being built by the Euclid Space Telescope has been released. The millions of stars and galaxies represent just 1% of the 3D map the mission will create.

This is the Cosmic Microwave Background, electromagnetic radiation from almost 13.8 billion years ago, immediately after the Big Bang. It’s the border of the known universe.

Ancient cosmic light that has uniformly filled the universe since around 400,000 years after the Big Bang could act like a treasure map that guides scientists to the secrets of dark matter.