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  2. SN 2023ixf - Wikipedia

    en.wikipedia.org/wiki/SN_2023ixf

    The supernova was about 21 million light-years from Earth and is expected to have left behind either a neutron star or black hole, based on current stellar evolution models. The supernova is located near a prominent HII region, NGC 5461, in an outer spiral arm of the bright galaxy. [3] By 22 May 2023, SN 2023ixf had brightened to about ...

  3. Near-Earth supernova - Wikipedia

    en.wikipedia.org/wiki/Near-Earth_supernova

    The Crab Nebula is a pulsar wind nebula associated with the 1054 supernova.It is located about 6,500 light-years from the Earth. [1]A near-Earth supernova is an explosion resulting from the death of a star that occurs close enough to the Earth (less than roughly 10 to 300 parsecs [33 to 978 light-years] away [2]) to have noticeable effects on Earth's biosphere.

  4. Supernova - Wikipedia

    en.wikipedia.org/wiki/Supernova

    A near-Earth supernova is a supernova close enough to the Earth to have noticeable effects on its biosphere. Depending upon the type and energy of the supernova, it could be as far as 3,000 light-years away. In 1996 it was theorised that traces of past supernovae might be detectable on Earth in the form of metal isotope signatures in rock strata.

  5. The red giant star Betelgeuse is closer than we thought ... - AOL

    www.aol.com/red-giant-star-betelgeuse-closer...

    This red giant star will, one day, explode as a supernova. ... roughly 765 times the diameter of the Sun. ... If Betelgeuse were too close to Earth, the eventual supernova could cause an ...

  6. Powerful Webb Telescope captures photos of one of the ... - AOL

    www.aol.com/powerful-webb-telescope-captures...

    Insets at lower right show one epoch of Webb observations, while the inset at left shows a Webb image of the central supernova remnant released in 2023. "Even as a star dies, its light endures ...

  7. Unprecedented image may reveal impending supernova that could ...

    www.aol.com/news/first-close-image-behemoth...

    Astronomers have taken the first close-up image of a star beyond our galaxy, and it’s a “monster star” surrounded by a cocoon as it slowly dies.

  8. List of supernova candidates - Wikipedia

    en.wikipedia.org/wiki/List_of_supernova_candidates

    Map showing various supernova candidates, most of which are within one kiloparsec from the Solar System. [1] This is a list of supernova candidates, or stars that are believed to soon become supernovae. Type II supernova progenitors include stars with at least 8~10 solar masses that are in the final stages

  9. GRB 221009A - Wikipedia

    en.wikipedia.org/wiki/GRB_221009A

    The supernova was a Type Ic supernova, similar to SN 1998bw, the first supernova linked to a GRB. Lightning detectors in India and Germany picked up signs that the Earth's ionosphere was perturbed for several hours by the burst, though only mildly, [ 37 ] [ 17 ] [ 4 ] as well as an enormous influx of electrically charged particles, [ 38 ...