A new study challenges the traditional interpretation of the cosmic microwave background, this fossil light from the Big Bang. Researchers from the universities of Bonn, Prague, and Nanjing propose a ...

Team led by UChicago scientist Wendy Freedman using James Webb Space Telescope finds no evidence of tension in Hubble ...

The greater the cosmic-ray energy, the greater its interaction cross-section, meaning it is more likely to interact with CMB ...

Researchers have an explanation for how dark matter emerged - beginning with weightless particles and ending with massive ...

Dark matter may have started as light-like particles that abruptly became heavy—a cosmic twist rooted in spin and ...

Researchers propose a new theory for the origin of dark matter, the invisible substance thought to give the universe its ...

"This shocking result means that we now need to revisit the very foundations of everything we know about cosmology," said the reseachers.

The photos show light, dark and the polarization of light—background radiation known as the cosmic microwave background, and details the movement of hydrogen and helium gas at the beginning of ...

The cosmic microwave background was first observed half a century ago, a serendipitous hiss picked up by an antenna in Holmdel, N.J. In the 1990s, a NASA satellite, the Cosmic Background Explorer ...