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2021-03-16: The NEW Crisis in Cosmology
: ... on a long chain of distance measurements that we call the
ladder. First you measure distances to objects in the solar ...
: ... that the supernova method is a pretty high rung on the
ladder - which means if any rung below it is broken, the method ...
: ... in these flickering lenses, we can get a measurement of
and with that a measurement of the expansion rate ...
: ... and so can be used to measure the expansion rate without the
ladder. We’re calling these black hole mergers ...
: ... of the universe - whether it’s a crack in the rung of the
ladder or something more fundamental about how the ...
2019-01-24: The Crisis in Cosmology
: This stepwise determination of astronomical distances is called the
: By improving this run on the
2016-05-04: Will Starshot's Insterstellar Journey Succeed?
: It's called the
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