- Sun - Wikipedia
The Sun is the star at the centre 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 It is by far the most important source of energy for life on Earth The Sun has been an object of
- Sun: Facts - NASA Science
Without the Sun’s energy, life as we know it could not exist on our home planet The temperature in the Sun's core is about 27 million degrees Fahrenheit (15 million degrees Celsius) – hot enough to sustain nuclear fusion This creates outward pressure that supports the star's gigantic mass, keeping it from collapsing
- In Depth | Sun – NASA Solar System Exploration
Without the Sun’s energy, life as we know it could not exist on our home planet From our vantage point on Earth, the Sun may appear like an unchanging source of light and heat in the sky But the Sun is a dynamic star, constantly changing and sending energy out into space
- Sun | Definition, Composition, Properties, Temperature, Facts . . .
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
- The Sun: Facts, size, and fate of Earth’s blazing star
Gazing up at the clear blue sky, our eyes are often drawn to the Sun, that magnificent burning orb that illuminates our days, warms our planet, and supports the growth of our food But how much
- Sun - National Geographic Society
The sun has extremely important influences on our planet: It drives weather, ocean currents, seasons, and climate, and makes plant life possible through photosynthesis On Feb 13th at 1738 UT, sunspot 1158 unleashed the strongest solar flare of the year so far, an M6 6-category blast
- Meet the Sun - Center for Science Education
Earth and all other objects in our solar system orbit around the Sun due to gravity – the Sun contains over 98% of all mass in the solar system and so exerts a strong gravitational pull Like other stars, the Sun is a dense ball of gas that creates energy through nuclear fusion reactions in the core, creating helium atoms from hydrogen atoms
- Sun - NASA Science
Learn how to integrate heliophysics concepts and resources into existing educational and outreach activities with the NASA Heliophysics Education Activation Team (NASA HEAT)
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