- Sun - Wikipedia
It is a massive 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 the main source of energy for life on Earth
- Sun - NASA Science
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
- Sun - National Geographic Society
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
- The Sun, our Solar System’s star | The Planetary Society
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
- Meet the Sun - Center for Science Education
The Sun is the closest star to Earth and is the center of our solar system Learn about fun Sun facts
- The Sun: Facts, size, and fate of Earth’s blazing star
The Sun is a dynamic and complex star that plays a critical role in our daily lives It’s a massive, incredibly hot ball of gas that’s been burning bright for billions of years
- How the Sun Works - HowStuffWorks
The sun warms our planet every day, provides the light by which we see and is necessary for life on Earth Learn about the sun
- Our Sun is a Star - Facts About the Sun | Exploratorium
Our Sun is a star, like the hundreds that you see at night, only much, much closer The Sun is a huge ball of hot, churning, unpredictable supercharged gasses called plasma Held together by gravity, the Sun produces the light and heat that make life on our planet possible
|