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2 days ago · The Sun is a main-sequence star, and, as such, generates its energy by nuclear fusion of hydrogen nuclei into helium. In its core, the Sun fuses 620 million metric tons of hydrogen and makes 616 million metric tons of helium each second.
Sep 12, 2024 · Come and discuss a classic Russian film. Find out more here.
2 days ago · The Short Answer: What are sunspots and solar flares? 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.
3 days 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.
Sep 17, 2024 · Answer your questions: What is a solar eclipse? What causes the seasons? What is space weather? Where does the Sun's energy come from? Games. Crafts. Activities. Media. Sun and Earth. Energy. Our Solar System. Everything! Articles, games and activities about our closest star.
Sep 17, 2024 · The Sun keeps our planet warm enough for living things to thrive. It gives us light so we can see. But it can also burn us. What causes these burns? All About Energy. The Sun sends lots of energy toward us all the time. There are a few different kinds of energy. There is infrared radiation, which is heat.
3 days ago · Sept. 26, 2024, 5:03 a.m. ET. In six billion years the sun will expand into a red giant. That process should consume Mercury, and maybe Venus. For a long time we have thought it might incinerate ...
