New computer simulations suggest the first magnetic fields that emerged after the Big Bang were much weaker than expected — ...

Nowadays, the dark of night is interspersed with the light of stars. But before the stars were born, did light shine at the beginning of the universe? The short answer is "no." But the long answer ...

How exactly did the universe start and how did these processes determine its formation and evolution? This is what a study ...

After about 380,000 years, the universe was sufficiently cool for those protons and neutrons to grab free-flying electrons and form the first electrically neutral atoms.

Beginning in the mid-2010s, we were able to detect their imprint on first the photons of the CMB and, a few years later, on the large-scale structure that would later grow in the Universe.

Chinese astronomers have spotted a hidden supermassive black hole in the background of a peculiar gravitational wave event ...

There were two periods of exponential expansion in the Universe: one today, dark energy, and one long ago, inflation. Are they related?

For the first time, our universe began shining with a light other than the afterglow of the Big Bang. Timeline of the universe. NASA, CC BY Leading up to our Cosmic Dawn, the entire universe was ...

In fact, the universe may have no beginning at all. "Our theory suggests that the age of the universe could be infinite," said study co-author Saurya Das, a theoretical physicist at the University ...