Ask Astro: What are the differences between supernovae, kilonovae, and hypernovae?

What are the differences between supernovae, kilonovae, and hypernovae? Wolfgang Golser Tucson, Arizona In Latin, nova means “new.” In astronomy, that refers to a temporary bright “star” in the night sky. But the causes of these brief but brilliant stars are varied. Classical novae occur in a binary star system with a white dwarf and a star close enough together that the white dwarf pulls, or accretes, material from its companion. The material — mostly hydroge

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