Hi everybody!! I'm going to make this quick, so i won't waste your time!(adsbygoogle = window.adsbygoogle || []).push({});

SO:

What are the proofs of the expansion of the universe??

And what were the firsts?

Is the cosmological redshift a proof of that?

A little more complicated one:

From where, in the einstein equations, should i see that tere is the gravitational attraction which pushes thing togheter?

Thanks a lot friends!

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# Proof of the expansion of the universe-cosmological redshift?

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