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Oct 31, 2019 · Once the burning is fast enough, this creates pressure so quickly that it doesn’t have time to dissipate, eventually causing a detonation. The same process seems to be behind supernova ...
Jun 30, 2020 · When a star dies, it emits a huge number of neutrinos that are thought to drive the resulting supernova explosion. The neutrinos flow freely through and out of the star before the explosion ...
- What Causes A Supernova?
- How Bright Are Supernovas?
- How Common Are Supernovas?
- What Can We Learn from Supernovas?
- How Do Scientists Study Supernovas?
One type of supernova is caused by the “last hurrah” of a dying massive star. This happens when a star at least five times the mass of our sun goes out with a fantastic bang! Massive stars burn huge amounts of nuclear fuel at their cores, or centers. This produces tons of energy, so the center gets very hot. Heat generates pressure, and the pressur...
These spectacular events can be so bright that they outshine their entire galaxies for a few days or even months. They can be seen across the universe.
Not very. Astronomers believe that about two or three supernovas occur each century in galaxies like our own Milky Way. Because the universe contains so many galaxies, astronomers observe a few hundred supernovas per year outside our galaxy. Space dust blocks our view of most of the supernovas within the Milky Way.
Scientists have learned a lot about the universe by studying supernovas. They use the second type of supernova (the kind involving white dwarfs) like a ruler, to measure distances in space. They have also learned that stars are the universe’s factories. Stars generate the chemical elements needed to make everything in our universe. At their cores, ...
NASA scientists use a number of different types of telescopes to search for and then study supernovas. One example is the NuSTAR (Nuclear Spectroscopic Telescope Array) mission, which uses X-ray vision to investigate the universe. NuSTAR is helping scientists observe supernovas and young nebulas to learn more about what happens leading up to, durin...
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 core-collapse. This ...
Nov 12, 2020 · November 12, 2020. 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 ...
Question: Is my body really made up of star stuff? Answer: Virtually all of the elements we see on the Periodic Table were made at some point during the life and death of a star. Only hydrogen, helium, and lithium were created in a different way, i.e., they were created as a result of the Big Bang explosion. So how does a star make the elements ...
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Sep 20, 2012 · What happens when a star explodes? Astronomers sorting through pieces of a star that burst about 330 years ago discovered it might have blown up from the inside out. Data from ground-based observatories and NASA's Chandra and Spitzer space telescopes reveal material forged deep inside the star, such as iron, was on the outer edge of the explosion. The blast, called a supernova, takes place ...
