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  1. en.wikipedia.org › wiki › SupernovaSupernova - Wikipedia

    3 days ago · 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. The original object, called the progenitor, either collapses to a neutron star or black hole, or is completely ...

  2. May 6, 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.

  3. May 3, 2024 · Learn about supernovae, the violent explosions of massive stars that outshine their galaxies and create heavy elements. Explore the history, types, and examples of supernovae, and how they are observed and studied by astronomers.

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  4. May 10, 2024 · Astrophysics. A nearby supernova could ruin your whole day. It’s difficult to grasp just how powerful an event the explosion of an entire star is. The energy released as visible light every ...

  5. Apr 30, 2024 · It seems like just yesterday that the Chandra and Hubble Space Telescopes released new observations of the Crab Nebula, creating a short but stunning time-lapse video of this iconic supernova remnant. But that was 2002 — and here we are, 22 years later, with a much-awaited sequel. All these years later, the pulsar that powers the show is ...

  6. May 15, 2024 · Supernova-filled galaxy dazzles in new Hubble Telescope image. There's a galaxy out there overflowing with star explosions. After an awe-filled weekend of the strongest northern lights in 20 years ...

  7. Apr 26, 2024 · Cassiopeia A is a much younger supernova remnant. It was visible from Earth 340 years ago and Chandra has been observing it since 2000 as well. Previous observations showing its changes focused on ...

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