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WEB22 ore fa · The Sun is the star at the center of the Solar System. It is a massive, nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy from its surface …
WEB6 giorni fa · Sun, star around which Earth and the other components of the solar system revolve. It is the dominant body of the system, constituting more than 99 percent of its entire mass. The Sun is the source of an …
WEBFind out the latest information about the Sun, the star at the center of the solar system, including its location, distance, brightness and sunspot activity. See interactive sky charts, maps and images of the Sun and …
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