12 Billion-Year Old Supernova Discovered by Astronomers

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Astronomers have discovered a pair superluminous supernovae, which are more than 10 billion years old. The Universe was only 3.75 billion years old back then. Of the pair, one is more remote and ranks as the most distant supernova ever discovered.

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Spectra Creates Doubt on Cause of Eta Carinae Stellar Explosion

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One hundred and seventy years ago, astronomers thought that a series of explosions on the surface of η Carinae were the beginning of a supernova, which would have marked the star’s death, however η Carinae still survived. η Carinae  is located in the constellation Carina, about 7,500 to 8,000 light-years from Earth.

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Links Between Core Collapse Supernovae and Star Formation Established

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When massive stars accumulate more iron that they can hold, they explode in what is called a core-collapse supernova, also known as Type II supernovae. Such supernovae will enrich their surroundings with key elements, seeding them for the formation of other stars. Now, cosmologists and extragalactic astrophysicists have linked the number of core-collapse supernovae (CCSN) in a galaxy with the actual star formation rate (SFR).

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Lasers Mimic Supernova to Explain Cosmic Magnetic Fields

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Scientists are using powerful lasers to mimic the effects of supernovae, which are helping to reveal how the magnetic fields of galaxies may have been formed in the early universe. All galaxies have magnetic fields, ones that might affect how fast stars are born, but it hasn’t been discovered where these magnetic fields come from.

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SN Primo Is Farthest Type Ia Supernova Discovered

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Supernova Primo originated 9 billion years ago, when its progenitor star exploded. The light was captured by the Hubble Space Telescope by a three-year project specifically trying to find Type Ia supernovae. These types of supernovae are paramount in order to discover more about the inflationary nature of our universe.

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