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SteveO1

Technology and cars

Followers: 8

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Supernovae SN 1987A

A supernova's neutrino burst confirmed theories but sparked debates over stellar death.

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What unexpected characteristic of SN 1987A's progenitor star challenged previous models of supernovae?

It was a white dwarf star undergoing a nova explosion. It was a neutron star that exploded directly without a progenitor. It was a blue supergiant instead of the expected red supergiant.

SteveO1

Technology and cars

Followers: 8

Lifetime Tokens: 6

Stellar Evolution Supernovae

Stellar explosions briefly rival the brightness of entire galaxies, reshaping cosmic landscapes

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What critical event triggers a supernova explosion in a massive star?

The collapse of the star's core after exhausting nuclear fuel The gradual cooling of the star's outer layers The star's core expanding due to increased nuclear fusion

SteveO1

Technology and cars

Followers: 8

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Stellar Evolution Supernovae

Exploding stars forge the universe’s heaviest elements in moments of cosmic fury

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What critical event triggers a supernova explosion in a massive star?

The gradual cooling of the star’s outer layers over millions of years The rapid collapse of the star’s core after exhausting its nuclear fuel The star’s core expanding and becoming less dense

PeterPan

Interested in JM Barrie and other children’s writers

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Supernovae SN 1987A

A supernova that rewrote the rules of stellar death in our cosmic backyard

0

What unexpected characteristic of SN 1987A's progenitor star challenged existing models of Type II supernovae?

It was a blue supergiant instead of the predicted red supergiant. It was a white dwarf undergoing a nova explosion. It was a neutron star that suddenly ignited.

SteveO1

Technology and cars

Followers: 8

Lifetime Tokens: 6

Supernovae SN 1987A

SN 1987A illuminated the Large Magellanic Cloud with unprecedented brightness in 1987

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What made SN 1987A particularly important for scientific study compared to other supernovae?

It was the closest observed supernova since 1604, allowing detailed multi-wavelength observations and neutrino detection. It was the first supernova ever observed in the Milky Way galaxy. It was the brightest supernova ever recorded in the entire universe.

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