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Supernova - Wikipedia
Supernovae are a major source of cosmic rays. They might also produce gravitational waves. The word supernova has the plural form supernovae (/- viː /) or supernovas and is often abbreviated as SN or SNe. It is derived from the Latin word nova, meaning 'new', which refers to what appears to be a temporary new bright star.
What Is a Supernova? | NASA Space Place – NASA Science for Kids
A supernova is the biggest explosion that humans have ever seen. Each blast is the extremely bright, super-powerful explosion of a star.
What Is a Supernova? - Space
Supernovas can briefly outshine entire galaxies and radiate more energy than our sun will in its entire lifetime. They're also the primary source of heavy elements in the universe. According to...
What is a supernova? | Ask Dr. Universe | Washington State University
A supernova is a very energetic explosion that happens when a really big star dies. Or when a star siphons mass from its companion or when stars collide.
Supernova | Definition, Types, & Facts | Britannica
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. Supernovae resemble novae in several respects.
What is a Supernova? Definition, Causes, Types of Supernova Explosions ...
Supernovas are so bright that they can be seen across the universe, outshining their entire galaxies for a few days or even months. How Rare is a Supernova? An exploding star happens around once a century in each of the hundreds of billions of galaxies in the cosmos.
Supernovas & Remnants - Harvard–Smithsonian Center for Astrophysics
Supernovas are some of the brightest events in the universe, occasionally outshining entire galaxies at their peak. Many supernovas can be seen from billions of light-years away, and nearby supernovas in past centuries have been visible during the daytime.
What is a supernova? - EarthSky
A supernova is the name given to the cataclysmic explosion of a massive star at the end of its life. It can emit more energy in a few seconds than our sun will radiate in its lifetime of...
What is a Supernova? Exploring the Explosive Death of Stars and Its ...
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.
Supernovae Information and Facts | National Geographic
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...
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