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Astronomers discover a potentially habitable planet just 25 light-years away. 'This one is exciting'
Yahoo • • science
Key Points:
- Astronomers have discovered a potentially habitable rocky exoplanet, GJ 3378b, orbiting a red dwarf star just 25 light-years away in the constellation Camelopardalis.
- Revised measurements show GJ 3378b has a mass 2.3 times that of Earth and orbits its star every 21 days, placing it within the habitable zone where liquid water could exist.
- The planet was detected via the star's wobble caused by gravitational pull, but it does not transit its star, making atmospheric studies with current telescopes like JWST impossible.
- A major challenge to habitability is the intense radiation from the red dwarf, which could strip away the planet's atmosphere; confirmation of an atmosphere may have to wait until the 2040s with NASA's Habitable Worlds Observatory.
- Despite uncertainties, astronomers are optimistic that GJ 3378b could harbor conditions suitable for life, marking an important step in identifying nearby potentially life-supporting planets.
