Cosmology, the branch of physics that deals with the universe, is facing a bit of a crisis right now. Four crises, actually.

Geometry, kinematics, and dynamics in an expanding Universe; Thermal history; Generation of standard model particles; Phase transitions; Inflation; quantum origin of primordial inhomogeneities; Scalar ...

New research that used imaging from the James Webb Space Telescope gives credence to a scientific theory that says the Milky ...

Physicist Alan Guth, the father of cosmic inflation theory, describes emerging ideas about where our universe comes from, what else is out there, and what caused it to exist in the first place.

Today, cosmology has a hugely successful consensus model — a flat accelerating Universe comprising dark energy, cold dark matter, neutrinos, microwave photons and a few atoms — with well ...

New data from the Atacama Cosmology Telescope has allowed astronomers to travel back in time to the dawn of the universe.

A groundbreaking new dataset containing information on 18.7 million celestial objects —the largest ever assembled—is now ...

So, the total model entropy increases over cosmic time because the Hubble radius grows steadily at the speed of light. Thus, ...