Type Trigger Progenitor Star Type Ia Thermonuclear explosion of a white dwarf White dwarf in a binary system Core-Collapse Core implosion due to iron accumulation Massive star (8+ solar masses). Such observations provide critical data on the distribution of heavy elements throughout the galaxy.
Simple Definition Supernova Star Explosion
Iron cannot be fused to release energy. Stars spend the majority of their lives fusing hydrogen into helium in their cores.
The shockwaves can trigger the formation of new stars in nearby nebulae. This collapse rebounds off the dense core, generating a shockwave that expels the outer layers into space.
Simple Definition Supernova Star Explosion
Accumulating too much mass triggers a runaway nuclear reaction, completely obliterating the white dwarf in a Type Ia supernova. A supernova represents the spectacular explosion of a star, marking one of the most energetic events in the universe.
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