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By Astronomy Cast on October 14, 2019 in

Astronomers have been trying to accurately measure the expansion rate of the Universe. It’s been tough to nail down, and now astronomers are starting to figure out why.

By Paul M. Sutter on June 18, 2019 in

What’s the deal with redshift? How can we actually interpret velocities when it comes to cosmic expansion?

By AwesomeAstro Pod on October 25, 2017 in

Hubble Constant & universe Expansion rate