We put up a new nostr:npub1e0v65awjnph2lk4nuhzqhe9fgh3r5p6k7zchktq5nlkez0rlljrqyw42r4 blog post: "How do we know the Universe is expanding?"

The first in a series about #ESAEuclid's core #science:  #cosmology.

👉🏼 https://www.euclid-ec.org/how-do-we-know-the-universe-is-expanding/

#astrodon #astronomy #DarkMatter #DarkEnergy