How does #ESAEuclid observe matter across the unverse - specifically if it doesn't emit light? It's the use of light deflection by matter, "gravitational lensing".

#ESA has released a new explainer video about how this works and how #Euclid's Flagship Simulations are used to simulate and quantify what is being measured:

https://www.esa.int/ESA_Multimedia/Videos/2024/09/Weak_gravitational_lensing_how_Euclid_maps_dark_matter

#science #astronomy #astrodon #gravity #darkmatter #darkenergy #galaxies

Weak gravitational lensing: how Euclid maps dark matter

^www.esa.int