Clip Reveals Moon Transiting Earth from 31 Million Miles Away

NASA says that this will help them process the observations of worlds in other galaxies: “‘Nevertheless, planet-characterizing space telescopes under study by NASA would be able to observe an Earth twin as a single point of light — a point whose total brightness changes with time as different land masses and oceans rotate in and out of view. The video will help us connect a varying point of planetary light with underlying oceans, continents, and clouds — and finding oceans on extrasolar planets means identifying potentially habitable worlds.’ said Seager.”

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