Hubble space telescope finds water vapor on ‘Super-Earth’ exoplanet

NASA’s Hubble Space Telescope has discovered water vapor in the atmosphere of a distant Earth-like exoplanet known as K2-18b.

The planet is located about 110 light-years away in the Leo constellation, according to a press releasefrom NASA about the exoplanet. NASA says K2-18b resides in a “habitable zone,” which is “the region around a star in which liquid water could potentially pool on the surface of a rocky planet.”

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