Mystery #1Tier 2-3stars / space

How does a star die?

Our Sun has shone for billions of years and looks like it always will. But stars don't last forever; one day even the Sun will die. What actually happens when a star runs out?

The Ring Nebula, the glowing shell of gas puffed off by a dying Sun-like star. — Photo: NASA, ESA & C. R. O'Dell (Vanderbilt University) · Public domain · via Wikimedia Commons

Your guess

What's your hunch about what happens to a star when it finally runs out of fuel?

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