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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.
Jul 9, 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 19, 2023 · Type I supernova: A star accumulates matter from a nearby neighbor until a runaway nuclear reaction ignites. Type II supernova: A star runs out of nuclear fuel and collapses under its own gravity.
Jun 6, 2024 · Jun 13, 2024. Around the world, professional and amateur astronomers alike are closely watching T Coronae Borealis – the “Blaze Star,” a binary system some 3,000 light-years from Earth – waiting for an impending nova explosion event so bright it will be visible on Earth with the naked eye.
Jun 15, 2024 · Learn about supernovae, the violent explosions of massive stars that outshine their galaxies and create heavy elements. Find out the types, history, and examples of supernovae, and how they are observed and studied.
Mar 22, 2024 · The outburst may remain visible to the naked eye for a couple of days before it begins to fade. Even after it dims, skywatchers will likely still be able to spot the eruption for around a week ...
Supernovae are massive cosmic explosions that produce heavy elements and enrich space. Learn about the different types of supernovae, how they occur, and what they leave behind.
