When planetary rings are mentioned, the image of Saturn immediately comes to mind. However, this celestial feature is not ...

Stars are the original nuclear fusion reactors. As it evolves, a star continuously fuses hydrogen, helium, and—if it becomes big enough—heavier elements, releasing the energy created into space as ...

Space has a way of making scientists throw out their textbooks. Just when astronomers think they understand how the universe ...

The discovery could challenge current ideas about how galaxies formed in the early universe. Hundreds of unexpectedly energetic objects have been discovered throughout the distant universe, possibly ...

The vast majority of matter is dark – invisible until it is detected only through its gravitational effects. The newly discovered object could be a clump of dark matter, or it could also be a compact, ...

In the blink of an eye after the Big Bang, the universe could have birthed strange new stars and black holes.

With the aid of a multinational network of radio telescopes, scientists have been able to detect the lowest-mass dark object ever found in the universe. The mysterious object, roughly one million ...