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 Sun is about 100 times wider than Earth and about 10 times wider than Jupiter, the biggest planet. The Sun is the only star in our solar system. It is the center of our …

18 hours ago · The sun unleashed its strongest flare of 2025, an X5.1 class blast from prolific sunspot AR4274 and triggered radio blackouts across Africa and Europe.

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, …

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 …

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.

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...

4 days ago · Is a sun a star or a planet? While science now agrees the sun is a star, new telescopes may soon challenge how we define solar objects.

7 hours ago · The most powerful solar flare of 2025 has launched a ball of energy toward Earth that could trigger widespread auroras across the northern half of the United States.

The Sun is the closest star to Earth and is the center of our solar system. Learn about fun Sun facts.