This is how ESA telescope Euclid is going to visualize dark matter

How can you see something that’s invisible? Well, with Euclid! This future ESA telescope will map the structure of the universe and teach us more about invisible dark matter and dark energy. Scientific coordinator of Euclid and Leiden astronomer Henk Hoekstra explains how this works.

Source:
https://phys.org/news/2020-02-esa-telescope-euclid-visualize-dark.html