The moon fits over the sun almost perfectly. That match is not permanent. It is ending at 3.8 cm per year. #Moon #SolarEclipse #Astronomy #SpaceScience #StrangerThanFiction #CosmicFuture #ScienceFacts #Bluesky #Flipboard
econopass.comThe Moon Is Slowly Moving Away From Earth. In About 600 Million Years Solar Eclipses Will No Longer Be Possible.The moon is receding from Earth at 3.8 centimeters per year, measured by laser bounced off retroreflectors left by Apollo astronauts. In approximately 600 million years its apparent diameter will no longer cover the sun's, and total solar eclipses will become physically impossible. We are living in the only window when they exist.