In the 1920s, astronomers thought that the Milky Way was the entire universe. Hubble's discovery revealed a much bigger ...

The discovery could help scientists get closer to understanding the mysterious invisible matter that makes up the bulk of our universe.

Thirty years after the discovery of the first exoplanet, we detected more than 7000 of them in our Galaxy. But there are ...

Scientists have revealed new insights into the distant X-ray universe, with the Einstein ... The research results of its discovery of a mysterious blast of X-rays in March — less than three ...