This drives an expanding shock wave into the surrounding interstellar medium, sweeping up an expanding shell of gas and dust observed as a supernova remnant. A supernova is a powerful and catastrophic event that occurs when a star explodes, releasing an immense amount of energy into space What is a supernova explained simply
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Learn how stars explode, the types of supernovae, what they leave behind, and the most famous supernovae in history.
A supernova of a star more than about 10 times the size of our sun may leave behind the densest objects in the universe— black holes
Supernova, any of a class of violently exploding stars whose luminosity after eruption suddenly increases many millions of times its normal level The term supernova is derived from nova (latin “new”), the name for another type of exploding star. Learn how massive stars explode, the types of supernovae, and the famous cosmic events captured by astronomers.
A supernova is what happens when a star has reached the end of its life and explodes in a brilliant burst of light. A supernova is not just a star’s death—it is a dramatic event that reshapes the cosmos These cosmic explosions are responsible for creating the elements that make up the earth and life itself, and they play a critical role in the evolution of galaxies and stars. Supernovas are some of the brightest events in the universe, occasionally outshining entire galaxies at their peak
A supernova is a star's colossal explosion at the end of its life, which can outshine its entire galaxy
Read about causes and types of supernovae here.
