The expanding Universe, full of galaxies and the complex structure we observe today, arose from a smaller, hotter, denser, more uniform state. It took thousands of scientists working for hundreds of years for us to arrive at this picture, and yet the lack of a consensus on what the expansion rate actually is tells us that either something is dreadfully wrong, or we have an unidentified error somewhere. (C. FAUCHER-GIGUÈRE, A. LIDZ, AND L. HERNQUIST, SCIENCE 319, 5859 (47))

Scientists Can’t Agree On The Expanding Universe

It’s either a cosmic mystery or a terribly mundane mistake.

The Universe is expanding, and every scientist in the field agrees with that. The observations overwhelmingly support that straightforward conclusion, and every alternative has failed to match its successes since the late 1920s. But in scientific endeavors, success cannot simply be…