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from the expanding-like-a-waistline-on-Thanksgiving dept.
Arthur T Knackerbracket has found the following story:
Reproduceability is key to science. A one-time “eureka!” could be the first step in a paradigm shift — or it could be a fluke. It’s the second, third, and hundredth measurements that put theories to the test.
That’s why recent measurements of the universe’s expansion have piqued interest. Even though astronomers have applied multiple methods relying on completely different physics, they’re still getting similar results: Today’s universe appears to be expanding faster than what’s expected based on measurements of the early universe. Can systematic errors explain this discrepancy? Or are new physics required?
Now Wendy Freedman (University of Chicago) and colleagues have posted a new, "middle-of-the-road" measurement on the astronomy preprint arXiv, adding a twist to the ongoing debate. The study will appear in the Astrophysical Journal.
(Score: 4, Interesting) by Immerman on Thursday September 19 2019, @03:28PM
Do some reading - for current cosmology to work, the universe had to expand much, much faster than light during the inflationary period.
Presumably they don't mean every point was expanding away from every other faster than light, but pick a point at the center, and one near the edge, and the distance in between them was expanding far too fast for any causal interaction to take place.