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The star collapses by its own gravity and the iron core heats up. The core becomes so tightly packed that protons and electrons merge to form neutrons. In less than a second, the iron core, which is about the size of Earth , shrinks to a neutron core with a radius of about 6 miles (10 kilometers).
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Gravitational collapse of a massive star, resulting in a Type II supernova. Gravitational collapse is the contraction of an astronomical object due to the influence of its own gravity, which tends to draw matter inward toward the center of gravity. [1] Gravitational collapse is a fundamental mechanism for structure formation in the universe.
Brian Cox explains the process of stars collapsing under their own gravity and how each new stage can produce elements.Best of Earth Science: http://bit.ly/E...
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- BBC Earth Science
Sep 16, 2020 · A low-mass star has a mass eight times the Sun’s or less and can burn steadily for billions of years. As it reaches the end of its life, its core runs out of hydrogen to convert into helium. Because the energy produced by fusion is the only force fighting gravity’s tendency to pull matter together, the core starts to collapse.
Jan 17, 2021 · Here’s how it works. Stars begin their lives when hydrogen fusion ignites in their dense, hot cores. Once that process starts, it's game on. The gravitational pull of all the mass of the star ...
Feb 4, 2014 · $\begingroup$ But the fact is that the higher the pressure, the less likely the star collapses. The reason why the balloon collapses when you break it is because when you break it, the pressure goes away. The lack of pressure causes gravity (in the star) or the springiness of the balloon to take over and make the thing collapse. $\endgroup$ –
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The Gravitational Collapse of Stars. We are accustomed to longevity in astronomy. The Sun has burned for 4.5 billion years, orbited by planets of equal age. Many of the stars in our galaxy are over 10 billion years old. These stars will eventually burn out and grow cold, but they will change only slowly. But this is not that fate of all stars ...
