Last year, astronomers peered into the atmosphere of this exoplanet and discovered both water vapor and temperatures that could potentially support life. It could broaden the types of exoplanets astronomers target in their search for life beyond Earth.
Last year, astronomers peered into the atmosphere of the exoplanet -- a planet outside our solar system -- and discovered both water vapor and temperatures that could potentially support life. Now, astronomers have used data about the exoplanet, including its mass, radius and what they learned about the atmosphere, to determine if it can host liquid water on its surface. Their study published Wednesday in The Astrophysical Journal Letters.
If the exoplanet is a mini-Neptune, it may also include a significant hydrogen"envelope" or layer around a high-pressure water layer. If this hydrogen layer is too thick, it would increase the exoplanet's temperature and pressure, making it inhospitable. The research team looked over the available atmospheric data to determine that the amount of detectable water vapor is significant, while other chemicals like methane and ammonia were lower than expected.
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