About half of the non-dark matter in the universe cannot be accounted for by stars and galaxies alone. Now, scientists say ...

Cosmic microwave background data support cosmology’s standard model but retain a mystery about the universe’s expansion rate.

A new analysis of astronomical data suggests unknown physics is at work assisting dark energy in acting almost as "antigravity," undoing the work of gravity, which clumps together matter to build vast ...

freeing the cosmic microwave background (CMB). Fifty million years or so later, gravity drove the formation of the first luminous objects – stars and black holes – which ended the dark ages and ...

Scientists have designed a 'cosmic radio' detector which could discover dark matter in 15 years. Published today in Nature, scientists at King's College London, Harvard University, UC Berkley and ...

Primordial black holes are the earliest black holes thought to exist, and they vanished almost as fast as they came into ...