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The Bubble Nebula is an emission nebula located 8,000 light-years away from Earth.

The Bubble Nebula is an emission nebula located 8,000 light-years away from Earth.
A nebula is an expanding cloud of gas and dust that is left behind after a star explodes.
NASA/ESA/Hubble Heritage Team

Often found in regions of space where new stars are forming, emission nebulae are hot, glowing clouds of gas.

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