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 …

Apr 22, 2025 · The Latin word for Sun is “sol,” which is the main adjective for all things Sun-related: solar. Helios, the Sun god in ancient Greek mythology, lends his name to many Sun …

Sep 24, 2025 · The Sun is about 5,800 kelvin at the surface and 15 million kelvin at the center.

Learn more about the life-giving star at the center of our solar system. Compared with the billions of other stars in the universe, the sun is unremarkable. But for Earth and the other planets...

When you move the slider back and forth in the activity above, you’re seeing the sun – up close – in different wavelengths! Light travels in waves, and the distance between the peaks of a wave …

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, …

Oct 18, 2023 · 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.