Euclid satellite prepped for July launch from US site.

The Euclid spacecraft has arrived at the Astrotech facility near Cape Canaveral after finishing its ocean cruise and will undergo subsystem testing before being mounted on a SpaceX Falcon 9 rocket for launch no earlier than July. The mission aims to map billions of galaxies out to 10 billion light years and uncover the mysteries of the "dark" Universe, which makes up more than 95% of the mass and energy in our Universe, including dark matter and energy that affect the motion and distribution of visible sources but do not emit, absorb or reflect any light.