Scientists analyzed data from 7 million galaxies and stumbled upon a missing piece of the cosmic puzzle. Thanks to the ...

Astronomers have long struggled with a troubling puzzle: a significant portion of normal matter in the universe appeared to ...

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

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 ...

Primordial black holes are the earliest black holes thought to exist, and they vanished almost as fast as they came into being. As Stephen Hawking predicted, black holes don’t only draw particles in, ...