Proxima Centauri: Earth's Closest Stellar Neighbor

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Proxima Centauri: Earth's Closest Stellar Neighbor - Distance & Facts

The second nearest star to Earth is Proxima Centauri.

While Alpha Centauri A and B are closer, they are actually part of a triple star system. Proxima Centauri is the closest star to our Sun and is about 4.24 light-years away.

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