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  2. Supernovae in fiction - Wikipedia

    en.wikipedia.org/wiki/Supernovae_in_fiction

    [2] [4] On-screen portrayals of deliberately caused supernovae also appear, which astrophysicist Elizabeth Stanway [Wikidata] attributes to the visual appeal of the resulting explosions. [3] One example is the 2001 episode " Exodus " of the television series Stargate SG-1 , where the event is triggered by a wormhole causing rapid mass loss from ...

  3. Starfish Prime - Wikipedia

    en.wikipedia.org/wiki/Starfish_Prime

    1]: 4 The actual weapon yield came very close to the design yield, which various sources have set at different values in the range of 1.4 to 1.45 Mt (5.9 to 6.1 PJ). The nuclear warhead detonated 13 minutes 41 seconds after liftoff of the Thor missile from Johnston Atoll. [5] Frame of the Starfish Prime Nuclear Test

  4. Supernova - Wikipedia

    en.wikipedia.org/wiki/Supernova

    In the case of a massive star's sudden implosion, the core of a massive star will undergo sudden collapse once it is unable to produce sufficient energy from fusion to counteract the star's own gravity, which must happen once the star begins fusing iron, but may happen during an earlier stage of metal fusion.

  5. Cosmic explosion will be visible to the naked eye in once-in ...

    www.aol.com/news/cosmic-explosion-visible-naked...

    Astronomers predict that the nova explosion could happen anytime between now and September. The last time this particular star system erupted was in 1946, Schaefer said, and another eruption will ...

  6. List of spaceflight-related accidents and incidents - Wikipedia

    en.wikipedia.org/wiki/List_of_spaceflight...

    2: Space Shuttle and other solid-fuel vehicles: Bruce Halker and Roy Westerfield lost their lives in the PEPCON disaster, an explosion of a factory that produced ammonium perchlorate for solid-fuel rocket boosters of the Space Shuttle and other launchers. 27 July 1989: Kennedy Space Center, US 1 Space Shuttle

  7. Type II supernova - Wikipedia

    en.wikipedia.org/wiki/Type_II_supernova

    A Type II supernova or SNII [1] (plural: supernovae) results from the rapid collapse and violent explosion of a massive star. A star must have at least eight times, but no more than 40 to 50 times, the mass of the Sun (M ☉) to undergo this type of explosion. [2]

  8. List of stellar explosion types - Wikipedia

    en.wikipedia.org/wiki/List_of_stellar_explosion...

    Supernova impostor, stellar explosions that appear similar to supernova, but do not destroy their progenitor stars Failed supernova; Luminous red nova, an explosion thought to be caused by stellar collision; Solar flares are a minor type of stellar explosion [1] Tidal disruption event, the pulling apart of a star by tidal forces

  9. What happens if an astronaut floats off into space? - AOL

    www.aol.com/news/2018-02-08-what-happens-if-an...

    If that fails, saving an astronaut floating off into space might require several tethers hooked together, a SAFER, and, to be honest, a lot of luck. RELATED: Here's whats happening in space this year: