The "afterglow" of the universe is an important piece of evidence for the Big Bang. This background radiation also provides ...

The word itself comes from galaktikós kyklos, or “milky circle,” the ancient Greek term for the Milky Way, our home galaxy.

NASA's James Webb Space Telescope made its public debut with a series of breathtaking images. Among them was an ethereal ...

There are thousands of galaxies contained in this image, including a cluster that looks to us as it was when the universe was ...

Scientists discovered one other curiosity between the relics: a faint glow at the center of the cluster. This could be a ...

What can heat distribution within galaxy clusters, which often consist of hundreds to thousands of galaxies, teach astronomers about their formation and ev | Space ...