Mystery over Universe’s expansion deepens with fresh data

Mystery over Universe’s expansion deepens with fresh data

Cosmic map only deepens expansion mystery

A map of the early Universe has reinforced a long-running conundrum in astronomy over how fast the cosmos is expanding. The data support previous estimates of the Universe’s age, geometry and evolution. But the findings clash with measurements of how fast galaxies are flying apart from each other. They predict that the Universe should be expanding at a significantly slower pace than is currently observed.

Nature | 4 min readReference: arXiv preprint 1 & arXiv preprint 2