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A supernova (pl.: supernovae or supernovas) is a powerful and luminous explosion of a star. A supernova occurs during the last evolutionary stages of a massive star, or when a white dwarf is triggered into runaway nuclear fusion.
Jun 6, 2024 · Don’t confuse a nova with a supernova, a final, titanic explosion that destroys some dying stars, Hounsell said. In a nova event, the dwarf star remains intact, sending the accumulated material hurtling into space in a blinding flash.
Jun 13, 2024 · Learn about the causes, types, brightness, and effects of supernovas, the biggest explosions in the universe. Find out how NASA scientists use telescopes to study these spectacular events and what they reveal about the origin of elements and the expansion of space.
Jun 15, 2024 · Learn about supernovae, the explosive events that end the lives of massive stars and create many of the elements in the universe. Find out the types, history, and examples of supernovae, and how they are observed and studied by astronomers.
- The Editors of Encyclopaedia Britannica
Mar 22, 2024 · Cosmic explosion will be visible to the naked eye in once-in-a-lifetime stargazing event. The event, known as a nova, will be so bright that a “new” star will seem to appear in the night sky ...
Jun 19, 2023 · A supernova is what happens when a star has reached the end of its life and explodes in a brilliant burst of light. Supernovas can briefly outshine entire galaxies and radiate more energy than...
Nov 12, 2020 · A supernova is the cataclysmic explosion of a massive star at the end of its life. Learn about the different types of supernovae, their causes, effects and examples, and how they are classified by their spectra.
