So much happened in the earliest moments of the universe. Elementary particles appeared, the first nuclei of hydrogen and ...

According to the equations that govern black holes, the larger one of these cosmic behemoths is the lower its average density – given that the universe contains a lot of relatively empty space, could ...

Led by doctoral student Tatsuya Kotani and Professor Tomoharu Oka from Keio University, the research team measured the ...

The universe's first galaxies were hot messes, according to a recent study. During their younger days, they were wild, ...

Using the James Webb Space Telescope, astronomers have captured the clearest picture yet of how galaxies formed in the early universe.

Searching for clues in the Epoch of Reionization, scientists discovered that the universe was quite a bit warmer before the ...

If it is a galaxy, it would be the oldest known galaxy in the cosmos, but it could also be a brown dwarf or an early black hole.

While scouring images from the James Webb Space Telescope, astronomers spotted Capotauro, "one of the most puzzling ...

He led a team of scientists who helped confirm that a Big Bang was the source of the universe. The discovery earned him a ...

Tel Aviv scientists predict ancient radio signals from the early Universe that could reveal how dark matter shaped stars and ...

NASA has used the James Webb Space Telescope to better understand the universe just after the Big Bang. The results have ...

Huge eruptions from the Milky Way’s supermassive black hole in the distant past may have sterilized much of the inner galaxy ...