Sun - Wikipedia
WEB23 hours ago · 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.
Sun | Definition, Composition, Properties, Temperature, & Facts
WEB6 days ago · 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 | TheSkyLive
WEBThe Sun is the star at the center of the solar system and is by far the largest object in it. It has a diameter of about 1.39 million kilometers and a mass of approximately 1.99 x 10^30 kilograms, accounting for about 99.86% of the total mass of the solar system.
Scientists a step closer to unraveling mystery of sun’s ... - CNN
WEBMay 22, 2024 · CNN —. The sun has a powerful magnetic field that creates sunspots on the star’s surface and unleashes solar storms such as the one that bathed much of the planet in beautiful auroras this month.
All About the Sun | NASA Space Place – NASA Science for Kids
WEBMay 6, 2024 · The Sun contains almost ALL of the material in our solar system. 99% of it. All the planets, asteroids and comets add up to less than 1% of the total. The Sun is so far away that it takes light about 8 minutes and 20 seconds for it to get to us – and light is the fastest thing in the universe.
The sun | Science | The Guardian
WEBMay 11, 2024 · The sun is currently ramping up to hit the peak of its 11-year activity cycle. In the past few days, powerful solar eruptions have sent a stream of particles towards Earth which are set to produce ...
NASA’s Quest to Touch the Sun | WIRED
WEBMay 12, 2024 · The outer layers of the sun’s atmosphere are a blistering million degrees hotter than its surface. NASA sent a probe to find out why—by getting closer to the star than ever before.
Sunspots and Solar Flares | NASA Space Place – NASA Science …
WEBMay 6, 2024 · Sunspots are areas that appear dark on the surface of the Sun. They appear dark because they are cooler than other parts of the Sun’s surface. Solar flares are a sudden explosion of energy caused by tangling, crossing or reorganizing of magnetic field lines near sunspots.
Solar radiation | UV Rays, Photons, Electromagnetic Waves
WEBMay 17, 2024 · Solar radiation, electromagnetic radiation, including X-rays, ultraviolet and infrared radiation, and radio emissions, as well as visible light, emanating from the Sun. Of the 3.8 × 1033 ergs emitted by the Sun every second, about 1 part in 120 million is received by its attendant planets and their.
Sun | NASA Space Place – NASA Science for Kids
WEBMay 6, 2024 · How Old Is the Sun? And how long will it shine? explore; Lunar Eclipses and Solar Eclipses. What’s the difference? explore; Make Sun Paper. Have some fun with the sun! do; Where Does Interstellar Space Begin? Interstellar space begins where the sun’s magnetic field stops affecting its surroundings. explore; Where Does the Sun's ...