
Imagine the surprise felt by the inhabitants of a nearby planet when their sun suddenly exploded in such a spectacular fashion as this one—the Cat’s Eye nebula. It is like what happens when you decide to boil a raw egg by putting it in your microwave oven. Surprise!
Our own sun is expected to end its life in the same fashion in about five billion years. Mark your calendar!
Credit: NASA, ESA, HEIC, and The Hubble Heritage Team (STScI/AURA)
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