operational Optical/UV/Infrared · Europe

Euclid

ESA · operator profile

ESA's dark-universe survey telescope, mapping the shapes and distribution of billions of galaxies across a third of the sky to trace how dark matter and dark energy have shaped cosmic structure over time.

Facts

Launch date
1 July 2023
Primary mirror
1.2 m single mirror
Location
Sun-Earth L2
Timeline
Launched 1 July 2023 on a Falcon 9; began its six-year survey of billions of galaxies in late 2023 to map the large-scale structure of the universe and constrain dark energy and dark matter.

Frequently asked about Euclid

Who operates Euclid?
Euclid is operated by ESA.
Is Euclid operational?
Yes, Euclid is currently operational.
Where does Euclid operate from?
Euclid operates from Sun-Earth L2, observing primarily in the optical/uv/infrared range.