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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 15, 2024 · Supernova, any of a class of violently exploding stars whose luminosity after eruption suddenly increases many millions of times its normal level. When a star ‘goes supernova,’ considerable amounts of matter may be blasted into space with such a burst of energy as to enable the star to outshine its entire home galaxy.
Jun 13, 2024 · A supernova is the biggest explosion that humans have ever seen. Each blast is the extremely bright, super-powerful explosion of a star. An illustration of one of the brightest and most energetic supernova explosions ever recorded. Image credit: NASA/CXC/M.Weiss.
These stars end their evolutions in massive cosmic explosions known as supernovae. When supernovae explode, they jettison matter into space at some 9,000 to 25,000 miles (15,000 to 40,000 ...
Jun 19, 2023 · A supernova is the explosion of a massive star. There are many different types of supernovae, but they can be broadly separated into two main types: thermonuclear runaway or...
Nov 8, 2023 · Here is a brief description of the main categories of exploding stars. By Jake Parks | Published: November 8, 2023 | Last updated on November 17, 2023. An artist's impression of how a type Ia ...
Nov 12, 2020 · 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.
Sep 23, 2021 · A supernova (the plural is supernovae) is the explosion of a star. They are extremely important for understanding our Galaxy. They heat up the interstellar medium, distribute heavy elements throughout the Galaxy, and accelerate cosmic rays.
A supernova is the colossal explosion of a star. Scientists have identified several types of supernova. One type, called a “core-collapse” supernova, occurs in the last stage in the life of massive stars that are at least eight times larger than our Sun.
Supernovae are dramatic explosions that take place during the final stages of the death of a supermassive star. Most stages of astronomical evolution happen over timescales far longer than a human lifetime, and even far longer than humanity’s entire history.
