If you get away from city lights and witness the astonishing beauty of the night sky, most of the stars you can see are part ...

Despite having recently officially ended its science operations in January, Gaia, one of the most prolific star explorers ...

Using the James Webb Space Telescope (JWST), astronomers have observed enigmatic rings in the planetary nebula NGC 1514, ...

leading to a state of equilibrium between gravitational collapse and the energy released during fusion Key fact In a main sequence star, hydrogen nuclei fuse together to form helium nuclei.

The Solar System was formed around 4.6 billion years ago from a giant cloud called a nebula, mainly made up of hydrogen gas and dust. The nebula collapsed under its own gravity and, as it did ...