ScienceCasts: Hubble’s Contentious Constant

Save
4 years ago
12
nasa nasa space space nasa nasa rocket rocket nasa space planet mars rover nasa rover moon

ScienceCasts: Hubble’s Contentious Constant

There are two leading ways to measure the universe's rate of expansion, and for fifteen years, they more or less agreed with one another. Not anymore, and that’s a big deal.

Loading comments...