CategoryHierarchies.com

Nebulae are vast clouds of dust and gas in space, often illuminated by the stars within them. They represent a crucial stage in stellar evolution, as they are formed from the remains of supernovae and other massive stars. These cosmic nurseries are where new stars begin to form, making them an essential area of study in physics and astronomy. Nebulae can take on various forms, such as emission, reflection, or dark nebulae, each with unique properties determined by their composition and the radiation they absorb or emit. Their striking colors and shapes have fascinated astronomers for centuries, contributing significantly to our understanding of the universe's origins and evolution.