Exoplanet discovery! 📢 Our NASA Exoplanets mission NASA's Transiting Exoplanet Survey Satellite - TESS has discovered its first Earth-sized planet in its star’s habitable zone — the Goldilocks zone for potential liquid water on the surface! Scientists have confirmed with NASA's Spitzer Space Telescope: https://go.nasa.gov/2T1PX0q | NASA - National Aeronautics and Space Administration

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