>> HUBBLE HAS DISCOVERED WATER VAPOR ON A SUPER EARTH
>> The Hubble Space Telescope has made the very first detection of water...
>> ...in the atmosphere of an exoplanet orbiting in its star's habitable zone.
>> The habitable zone is the region around a star where
>> temperatures would let liquid water exist on a planet's surface.
>> K2-18b, which is eight times the mass of Earth, is the first planet outside the solar system
>> in the habitable zone known to have water in its atmosphere.
>> Using Hubble data, scientists analyzed the starlight filtered through K2-18b’s atmosphere.
>> The team found the molecular signature of water vapor in the planet’s atmosphere.
>> Located 110 light-years from Earth, K2-18b orbits a dwarf star that’s much smaller, cooler, and more active than
>> the Sun, which could affect its atmosphere and environment.
>> While we won’t be able to know if it’s truly habitable...
>> we’ll use future telescopes, like the James Webb Space Telescope, to seek answers to one of the biggest questions.
>> Is Earth unique?
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