| 21. | This will be sufficient to unbind the star in a cataclysmic, Type Ia supernova explosion.
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| 22. | Current theories fail to explain how such speeds can be attained from a supernova explosion.
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| 23. | Reines had prepared for the possibility of measuring the distant events of a supernova explosion.
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| 24. | Iron core collapse may produce a supernova explosion, and sometimes a gamma-ray burst ( GRB ).
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| 25. | Pulsars are rapidly rotating, highly magnetized neutron stars formed during the supernova explosions of massive stars.
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| 26. | Other nebulae form as the result of supernova explosions; the death throes of massive, short-lived stars.
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| 27. | :A neutrinosphere is a transient region within a supernova explosion where neutrinos exist in thermal equilibrium.
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| 28. | The heavier elements from oxygen to iron are primarily produced by supernova explosions within the galaxy.
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| 29. | The region is a firestorm of raw stellar creation, perhaps triggered by a nearby supernova explosion.
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| 30. | Their source is likely to be supernova explosions.
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