Our Universe Visualized
In February 1987 a supernova was seen to explode in the Large Magellanic Cloud.   Around 260 days later a ring of material that had previously been ejected by the star was excited by the ultraviolet light emitted as the star exploded and began to glow.   Further away from the supernova two flattened outer rings have appeared.   Their origin is still a mystery but could perhaps be caused by beamed jets emanating from a hidden neutron star resulting from the supernova explosion or caused by material ejected by the supernova interacting with gas released, as in the smaller ring, during the unstable phase of the star prior to its explosion.

It might be worth noting that the neutrinos emitted as the star exploded arrived close to the time at which the first visible light was seen and indicate that they were travelling just slower than the speed of light.

credit: ESA/Hubble, NASA

In February 1987 a supernova was seen to explode in the Large Magellanic Cloud. Around 260 days later a ring of material that had previously been ejected by the star was excited by the ultraviolet light emitted as the star exploded and began to glow. Further away from the supernova two flattened outer rings have appeared. Their origin is still a mystery but could perhaps be caused by beamed jets emanating from a hidden neutron star resulting from the supernova explosion or caused by material ejected by the supernova interacting with gas released, as in the smaller ring, during the unstable phase of the star prior to its explosion.

It might be worth noting that the neutrinos emitted as the star exploded arrived close to the time at which the first visible light was seen and indicate that they were travelling just slower than the speed of light.

credit: ESA/Hubble, NASA

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