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New NASA research casts doubt on Proxima b habitability
A recently discovered Earth-sized planet, dubbed Proxima b, which orbits within the \"habitable zone\" of the red dwarf Proxima Centauri, may not actually harbour life, new NASA research suggests.
​Washington: A recently discovered Earth-sized planet, dubbed Proxima b, which orbits within the "habitable zone" of the red dwarf Proxima Centauri, may not actually harbour life, new NASA research suggests.
The search for life beyond Earth starts in habitable zones, the regions around stars where conditions could potentially allow liquid water -- which is essential for life as we know it -- to pool on a planet's surface.
And the discovery of Proxima b raised hope of finding life beyond our home planet.
But some of these zones might not actually be able to support life due to frequent stellar eruptions from young red dwarf stars which can threaten an exoplanet's atmosphere with oxygen loss , said the study published in the journal The Astrophysical Journal Letters.
It is quite unlikely Proxima b is habitable, the scientists concluded.
