Nebulas are mostly made up of dust, hydrogen, helium, and ionised gases. There are four types of nebulae: planetary nebulas, supernova remnants, dark nebulas, and emission nebulas.

From the mystique of the Pillars of Creation to a sneak peek into the the deepest parts of our universe, check out these 10 ...

Astrophotographer Miguel Claro captured a stunning view of the Lion Nebula in the Cepehus constellation, revealing colorful clouds of ionized hydrogen gas. Miguel Claro is a professional ...