nasa
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NASA Images
Publish date: Dec 27, 2018The below images are from the NASA Image and Video Library – indulge yourself, revel in their beauty. The Sun is the star at the center of the Solar System. It is a nearly perfect sphere of hot plasma, with internal convective motion that generates a magnetic field via a dynamo process. It is by far the most important source of energy for life on Earth. Credits. The Moon is an astronomical body that orbits planet Earth and is Earth’s only permanent natural satellite.