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A typical type II-P supernova emits 2 × 10 46 J of neutrinos and produces an explosion with a kinetic energy of 2 × 10 44 J. As seen from Earth, Betelgeuse as a type II-P supernova would have a peak apparent magnitude somewhere in the range −8 to −12. [ 176 ]
It was initially estimated to have a much lower mass, and thus a low density of 3.3 ± 0.9 g/cm 3 and a surface gravity around 6.1 m/s 2 (62% of Earth's value). [1] This suggested a large amount of volatiles , with a 2017 study suggesting that a water ocean may comprise as much as 20% of the planet's mass, increasing the temperature at the ...
The Space Variable Objects Monitor is a small X-ray telescope satellite for studying the explosions of massive stars by analysing the resulting gamma-ray bursts, developed by China National Space Administration (CNSA), Chinese Academy of Sciences (CAS) and the French Space Agency , [45] launched on 22 June 2024 (07:00:00 UTC).
Multiple telescopes observed a rare cosmic explosion called a kilonova that created heavy elements in space, including some necessary for life. Explosion 1 million times brighter than the Milky ...
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Phaeton (alternatively Phaethon / ˈ f eɪ. ə θ ən / or Phaëton / ˈ f eɪ. ə t ən /; from Ancient Greek: Φαέθων, romanized: Phaéthōn, pronounced [pʰa.é.tʰɔːn]) is a hypothetical planet hypothesized by the Titius–Bode law to have existed between the orbits of Mars and Jupiter, the destruction of which supposedly led to the formation of the asteroid belt (including the ...
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 (roughly less than 10 to 300 parsecs [30 to 1000 light-years] away [2]) to have noticeable effects on Earth's biosphere.
An explosion in space so massive you'll be able to look up and see it in the night sky without a telescope could happen "any day now," a NASA expert said Wednesday.