Astronomers have found a potential planet around Barnard's star, the second closest stellar system to our sun, after years of debunked claims.
The researchers' focused efforts on Barnard's star, using advanced planet-hunting technology, revealed not only one confirmed planet but also hints at three more candidates.
The confirmed planet's location in the habitable zone suggests conditions could allow liquid water, but its smaller mass poses challenges for sustaining an atmosphere.
Despite its presence in the habitable zone, the confirmed planet and its candidates are all less massive than Earth, making atmospheric retention difficult.
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