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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 mainly as visible light and infrared radiation with 10% at ultraviolet energies.
Learn about the Sun, the star at the heart of our solar system, and its connection and interactions with Earth. Explore the Sun's 3D world, past and future missions, eclipse resources, and cultural influences.
Our Sun is a 4.5 billion-year-old yellow dwarf star – a hot glowing ball of hydrogen and helium – at the center of our solar system. It’s about 93 million miles (150 million kilometers) from Earth and it’s our solar system’s only star. Without the Sun’s energy, life as we know it could not exist on our home planet.
2 de fev. de 2024 · The sun is an ordinary star, one of about 100 billion in our galaxy, the Milky Way. The sun has extremely important influences on our planet: It drives weather, ocean currents, seasons, and climate, and makes plant life possible through photosynthesis.
5 de jan. de 2018 · The sun keeps the planets in its orbit with a tremendous gravitational force. What would happen if it disappeared entirely? Learn about the star at the cente...
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- National Geographic
19 de mar. de 2024 · Learn how the Sun shapes our solar system and life on Earth in this five-part miniseries from NASA's Curious Universe. Explore the Sun's origin, structure, activity, and mysteries with NASA experts and stories.
