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Which is the nearest known exoplanet to Earth?
Quick Answer
Proxima Centauri b is the nearest known exoplanet to Earth, orbiting the closest star to the Sun. It lies about 4.24 light-years away.
The Full Story
Proxima Centauri b is the nearest known exoplanet to Earth, orbiting Proxima Centauri in the Alpha Centauri system. It is about 4.24 light-years away, making it a key target in exoplanet research. The planet is in the star’s habitable zone, though its actual habitability is uncertain because Proxima Centauri is an active red dwarf. Its discovery in 2016 generated major interest because of its proximity and Earth-like size estimate.
Key Facts
1.Proxima Centauri b is about 4.24 light-years away
2.It was announced in 2016
3.It orbits the nearest star to the Sun
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"The closest alien planet to Earth"
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