How Fast Is the Universe Really Expanding?

Nancy Grace Roman Space Telescope is going to help take a big step forward on this question

I am stupid-excited for it, just a month away if nothing goes sideways

* https://nextspaceflight.com/launches/details/6983/

* https://roman.gsfc.nasa.gov/about.html

State-of-the-art 500mbps downlink from a MILLION miles away