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

Final sprint for the #ESAEuclid #galaxyzoo galaxy shape classification campaign. The set of 3500 galaxies requiring each 25 people's classification is almost but not yet fully complete.

So you can still participate: go to https://galaxyzoo.org and start classifying!

We will use these data to train an automated #machinelearning algorithm, which in turn will be able to classify millions and millions of #Euclid galaxies!

#astronomy #astrodon #space #science

Zooniverse

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^{galaxyzoo.org}