Hackernews posts about Euclid

Euclid is a space telescope designed to map the "dark universe", a region of space that contains dark matter and dark energy, which are invisible and unknown forces that make up a large part of the universe's structure.

Related: SpaceX  
  1. First images from Euclid are in (dlmultimedia.esa.int)
  2. EuclideanSpace (euclideanspace.com)
  3. Euclid's Elements (en.wikipedia.org)