Tensions are rising with the beloved lambda-CDM model of the Universe. Is it time for Early Dark Energy to swoop in to save the day?
How can we use gravitational lensing to measure the expansion rate of the Universe?
The latest LIGO-Virgo catalog presents a new set of ‘standard siren’ events that can be used to study the cosmic history of our universe. Read more…
Today’s paper investigates whether it really matters how stars and galaxies cause cosmic reionization.
The cold spot is a strange feature in the CMB that has puzzled astronomers for years. Today’s authors use gravitational lensing to find at least a partial cause: A giant supervoid extending 1.8 billion light years!
Massive neutrinos are a thorn in the side of both the Standard Model and ΛCDM – today’s paper reconsiders what we can learn about them from some cosmological data!