What Makes Some Stars Explode Into Supernovas?

Stars are like giant balls of fire, burning for millions of years. When a big star runs out of fuel, it can't hold itself together anymore, and then BOOM! It explodes in a fiery show called a supernova. Not all stars are big enough to make this kind of explosion.

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Examples

A big star runs out of fuel and explodes into a fiery supernova.
Two stars in a binary system share energy, one becomes a supernova, the other gets more mass.
A star like our Sun will never become a supernova, it'll just shrink into a white dwarf.

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Categories: Space · supernova· star life cycle· astronomy· stellar explosion· cosmic events