For nearly a century, astronomers have been striving to measure the rate at which the Universe is expanding. Two main methods ...

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 ...

Professor George Efstathiou has been awarded the Shaw Prize in Astronomy, one of the biggest prizes in the field. Efstathiou, Emeritus Professor of ...

One of the Holy Grails in cosmology is a look back at the earliest epochs of cosmic history. Unfortunately, the universe's first few hundred thousand years are shrouded in an impenetrable fog.

James Webb telescope helped solve a decade-long mystery about the universe’s expansion rate, shedding new light on the cosmic ...

Cosmic microwave background is the oldest light in the universe. Cosmic microwave background is the oldest light in the universe. It was set free when the universe was a mere 380,000 years old and ...

"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 ...

For 75 years, scientists have consistently pondered the Fermi Paradox, which asks why we don’t hear from other civilizations ...

There is a set of very special numbers, known as the fundamental constants of nature, that cannot be explained. Where do they ...

The earliest galaxies may have scrambled our reading of the Universe. A new study challenges the traditional interpretation of the cosmic microwave background, this fossil light from the Big Bang.

You could swim through the deepest voids and encounter a single hydrogen atom in an entire football field's worth of space.