#hubble-tension tag

New JWST lens survey: can it save the expanding Universe?

Observations from within the local Universe limit measurements, producing conflicting Hubble expansion rates (67 vs 73 km/s/Mpc), motivating new methods such as JWST multiply-lensed supernova observations.

Science

fromBig Think

3 days ago

Starts With A Bang podcast #125 - Large-scale structure

Large-scale structure data from DESI supports evolving dark energy that weakens over time, challenging the concordance cosmology and the constant dark energy assumption.

Science

fromBig Think

1 month ago

Gravitational lensing is amazing, but won't solve the Hubble tension

Two independent measurement methods produce conflicting expansion rates (67 vs 73 km/s/Mpc), creating the Hubble tension that lensing methods alone cannot resolve.

fromNature

2 months ago

Why we still don't understand the Universe - even after a century of dispute

Discordance fits into the class of conventional popular cosmology, in so far that it is an account of how our present understanding of the Universe has emerged. But it is also, with some exceptions, more historically correct than other similar books. Baggott's book is a masterpiece that combines depth with clarity and comprehensiveness with readability. It presents modern cosmology as an unfinished business, rather than as the final conclusion on what the Universe is all about.

Books

#dark-energy

fromBig Think

2 months ago