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1. www.sciencenews.org › article › supernova-star-earlyAn early outburst portends a star’s imminent death

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   Jan 14, 2022 · By Emily Conover. January 14, 2022 at 7:00 am. A star’s death usually comes without warning. But an early sign of one star’s imminent demise hints at what happens before some stellar ...

2. news.ucsc.edu › 2021 › 10Astronomers witnessed the spectacular death of a star as it ...

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   Oct 21, 2021 · The findings also indicate that the star had a complicated history of mass loss a few years before core collapse. In the years before stars explode, they tend to become more active. Some astronomers point to the red supergiant Betelgeuse, which has recently been belching significant amounts of material, and they wonder if this star will soon go supernova.

3. www.astronomy.com › science › snapshot-chandra-spotsChandra spots evidence for long-standing theory of how stars ...

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   May 3, 2021 · But a new discovery made with NASA’s Chandra X-ray Telescope is shedding light on the situation. Here’s what astronomers believe happens when a massive star explodes: First, the star’s core ...

4. science.nasa.gov › missions › hubbleHubble Gives Unprecedented, Early View of a Doomed Star’s ...

   science.nasa.gov › missions › hubble

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   Oct 21, 2021 · Oct 21, 2021. Article. Like a witness to a violent death, NASA's Hubble Space Telescope recently gave astronomers an unprecedented, comprehensive view of the first moments of a star's cataclysmic demise. Hubble's data, combined with other observations of the doomed star from space- and ground-based telescopes, may give astronomers an early ...

5. phys.org › news › 2021-09-stellar-collision-triggersStellar collision triggers supernova explosion - Phys.org

   phys.org › news › 2021-09-stellar-collision-triggers

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   Sep 2, 2021 · The collapse of the star's core caused it to explode as a supernova, following its sibling's earlier explosion. "The companion star was going to explode eventually, but this merger accelerated the ...

6. www.sciencedaily.com › releases › 2021Stellar collision triggers supernova explosion - ScienceDaily

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   Sep 2, 2021 · The collapse of the star's core caused it to explode as a supernova, following its sibling's earlier explosion. "The companion star was going to explode eventually, but this merger accelerated the ...

7. People also ask

   What happens when a star's core collapses?

   • As the core collapsed, it briefly formed a disk of material closely orbiting the intruder and propelled a jet of material outward from the disk at speeds approaching that of light, drilling its way through the star. A compact object (a black hole or neutron star) at the core of its massive stellar companion.

   Stellar collision triggers supernova explosion - Phys.org

   phys.org/news/2021-09-stellar-collision-triggers-supernova-explosion.html

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   What happens before a star explodes?

   • Scientists observed the last gasp of a type of star called a red supergiant (illustrated). The star brightened before exploding, probably signaling that it had cast off some of its outer layers. A star’s death usually comes without warning. But an early sign of one star’s imminent demise hints at what happens before some stellar explosions.

   An early outburst portends a star’s imminent death - Science News

   www.sciencenews.org/article/supernova-star-early-outburst-explosion-warning-death

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   Why did a companion star explode?

   • The collapse of the star's core caused it to explode as a supernova, following its sibling's earlier explosion. "The companion star was going to explode eventually, but this merger accelerated the process," Dong said.

   Stellar collision triggers supernova explosion - Phys.org

   phys.org/news/2021-09-stellar-collision-triggers-supernova-explosion.html

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   Do stars slough off layers before death?

   • Previous post-explosion observations of such supernovas have hinted that the stars slough off layers before death. In 2021, astronomers reported signs of a supernova’s shock wave plowing into material that the star had expelled ( SN: 11/2/21 ). A similar sign of cast-off stellar material was also found in the new study.

   An early outburst portends a star’s imminent death - Science News

   www.sciencenews.org/article/supernova-star-early-outburst-explosion-warning-death

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   How did a star form when its core collapsed?

   • As the core collapsed, it briefly formed a disk of material closely orbiting the intruder and propelled a jet of material outward from the disk at speeds approaching that of light, drilling its way through the star.

   Stellar collision triggers supernova explosion | ScienceDaily

   www.sciencedaily.com/releases/2021/09/210902174652.htm

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   What happens when a red supergiant star dies?

   • The result is a complete picture of the death of a red supergiant star when it runs out of fuel, collapses under its own gravity, and explodes in a core-collapse supernova.

   Astronomers witnessed the spectacular death of a star as it happened

   news.ucsc.edu/2021/10/supernova-rosetta.html

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8. arstechnica.com › science › 2021New data is evidence of process that powers exploding stars

   arstechnica.com › science › 2021

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   Apr 21, 2021 · The material that hasn't been baked by neutrinos is still doing its best to collapse. The result is some dramatic convection in the outer layers of the star, as collapsing and exploding materials ...