However, although photons of light existed since the first second after the Big Bang, they could not yet shine across the universe. This is because the early cosmos was so hot that "electrons were ...

The early Universe hosted ultra-weak magnetic fields that still shaped cosmic structures. New simulations establish stricter limits on their strength. Magnetic fields that originated during the earlie ...

The James Webb Space Telescope has found a lonely black hole in the early universe that’s as heavy as 50 million suns. A ...

Scientists have recreated the first molecule ever to form and found that it likely played a much bigger role in the birth of early stars than previously thought. It then took another 380,000 years for ...

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

The theorists predict that the beginning of the end will be in about 10 billion years — less than the present age of the universe. Tantalizing evidence hints that dark energy might be evolving, ...