Scientists have observed the biggest supernova - stellar explosion - ever detected, the violent death of a huge star up to 100 times more massive than our sun in a faraway galaxy. The next time you peel onions in the kitchen, try not to cry. Supernova: Five Stages in the Death of a Star 1. a small asteroid (10 km in diameter)

A supernova explosion often blows a star apart, leaving behind a massive core. The first light flash The core collapses and sends a shock wave out. There is no more fuel to burn and make it shine. But a recently observed supernova clashes with the models for the death of massive stars. In this case, a neutron star is left in the center of the SNR. For a star to explode as a Type II supernova, it must be at several times more massive than the sun (estimates run from eight to 15 solar masses). The supernova itself also left what appeared to be the signature of two explosions, separated by about 100 days. This artist’s impression shows another supernova known as SN 2006gy. The explosions of stars are some of the most stunning and powerful phenomena seen in the universe. Stars like the Sun do NOT die as supernovae. The massive Betelgeuse is 20 times the mass of our sun, and would engross Mercury, Venus, Earth, Mars, the asteroid belt and possibly even Jupiter if we were to supplant that star … Some supernova explosions result in the creation of stellar-mass black holes. Soon its massive dense core is bound to collapse under its own weight. The nebula from supernova remnant W49B, still visible in X-rays, radio and infrared wavelengths. Our Sun will die a slow sad …

Iron: A Massive Star's Dead End. If the star's iron core is massive enough, it will collapse and become a supernova.

A(n) *massive star supernova* occurs when fusion creates iron in the core of a star. When a massive star reaches the end of its life, it can explode as a supernova. And this star was extremely massive, starting life as some 200 times the mass of the sun, near the upper limit of what scientists think is possible for a single star to weigh.

The massive Betelgeuse is 20 times the mass of our sun, and would engross Mercury, Venus, Earth, Mars, the asteroid belt and possibly even Jupiter if we were to supplant that star …

A supernova of a star more than about 10 times the size of our sun may leave behind the densest objects in the universe—black holes. It takes a star at least 8–10 times as massive as the Sun to go supernova… If the star starts with between 5 and 12 times the mass of our sun, the neutron degeneracy pressure in the core is thought to be able to withstand the gravitational pressure of the star remaining after the supernova explosion.

One kind of supernova has shown scientists that we live in an expanding universe, one that is growing at an ever increasing rate. A supernova is the explosion of a star -- the largest explosion that takes place in space. A supernova (/ ˌ s uː p ər ˈ n oʊ v ə / plural: supernovae / ˌ s uː p ər ˈ n oʊ v iː / or supernovas, abbreviations: SN and SNe) is a powerful and luminous stellar explosion.This transient astronomical event occurs during the last evolutionary stages of a massive star or when a white dwarf is triggered into runaway nuclear fusion. A supernova occurs when a star explodes, shooting debris and particles into space. Just before explosion A red super-giant star approaches the end of its life. A white dwarf in a close binary system will explode as a supernova if it gains enough mass to exceed the * white dwarf limit (1.4 solar masses) *. But a recently observed supernova clashes with the models for the death of massive stars. The Crab Nebula is the leftover, or remnant, of a massive star in our Milky Way that died 6,500 light-years away. the remains of a star that died in a massive star supernova (if no black hole was created) A typical neutron star is more massive than our Sun and about the size (radius) of _________. The sun is a main sequence star. 2. How quickly does this process happen? A distant star in spiral galaxy named NGC7610 detonated in 2013 with a massive supernova. For a few hours the shock The nebula from supernova remnant W49B, still visible in X-rays, radio and infrared wavelengths. These supernovae occur at the end of a massive star's lifetime, when its nuclear fuel is exhausted and it is no longer supported by the release of nuclear energy. An extremely energetic supernova from a very massive star in a dense medium Matt Nicholl,1;2; Peter K. Blanchard,3;4 Edo Berger,4 Ryan Chornock,5 Raffaella Margutti,3 Sebastian Gomez,4 Ragnhild Lunnan,6;7 Adam A. Miller,3;8 Wen-fai Fong,3 Giacomo Terreran,3 Alejandro Vigna-Gomez´ 9, Kornpob Bhirombhakdi10, Allyson Bieryla4, Pete Challis4, Russ R. Laher11, Frank

A supernova burns for only a short period of time, but it can tell scientists a lot about how the universe began.

The explosions of stars are some of the most stunning and powerful phenomena seen in the universe.

The sun is neither a supernova nor a white dwarf.

A supernova is not a kind of star: it is the explosion of a massive star.

As the star compacts under its own gravity, it will trigger a massive supernova explosion.



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