Question: what are the similarities between a nova and a type i supernova what are the differences?
Answer: A nova is an explosion from the surface of a white-dwarf star in a binary star system. ... Type I supernovae most likely form as a white dwarf “steals” hot gas from a companion star. If enough gas piles up on the surface of the white dwarf, a runaway thermonuclear explosion blasts the star to bits, leaving nothing behind.