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

84K views · 4.8K reactions | There's a helpful concept we use to understand the distance from a star where you might find planets with liquid water on their surfaces — water being essential for life as we know it. It's called the habitable zone. Every star has one, but they're not all equal: youtu.be/J04YN9azln8 | NASA - National Aeronautics and Space Administration | Facebook