The US National Aeronautics and Space Administration held a press conference today announcing newly discovered Earth-sized planets orbiting a single star in the Trappist-1 system.

Three of the seven Earth-sized planets are found within the star’s habitable zone, meaning liquid water, and even more amazingly, life, could exist on the planets’ surfaces.

Trappist-1 system image courtesy NASA Trappist-1 system image courtesy NASA

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Source: NASA Announces New Exoplanet Discoveries

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