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Sun. 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.
The Sun is the largest object in our solar system. Its diameter is about 865,000 miles (1.4 million kilometers). Its gravity holds the solar system together, keeping everything from the biggest planets to the smallest bits of debris in orbit around it.
The Sun. The Sun is the star at the heart of our solar system. Its gravity holds the solar system together, keeping everything – from the biggest planets to the smallest bits of debris – in its orbit.
Feb 2, 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. Without the sun’s heat and light, life on Earth would not exist.
Jun 27, 2024 · 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 enormous amount of energy, a portion of which provides Earth with the light and heat necessary to support life.
May 29, 2024 · Sun 101. 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 center of our solar system, and how it is critical to all life as we know it. Grades. 5 - 12. Subjects. Earth Science, Astronomy. Failed to fetch. Overview. Transcript (English)
Sep 15, 2018 · Characteristics of the sun. The sun resides some 26,000 light-years from the Milky Way's center, in a tendril of our home galaxy known as the Orion Arm. Every 230 million years, the sun—and the...
Aug 12, 2021 · The Sun is a star at the center of our solar system. In its core, it converts hydrogen into helium. This is done in a series of nuclear fusion reactions that produce large amounts of energy. This energy reaches Earth in the form of solar radiation (sunlight).
The Sun is the engine behind much of Earth’s environment, providing energy for everything from ocean currents and weather patterns to the plants and algae that form the base of many food chains. The Sun is the easiest star for us to study, making it very useful to the field of astrophysics.
Jun 25, 2024 · The sunspot region responsible for May's epic solar storm and widespread auroras is returning for the third time. The Sun. The sun's magnetic field is about to flip. Here's what to expect. By...
