Discover interesting facts about the sun, the solar system's central star that supports all life on Earth.

Our sun is classified as a G2 medium-sized star. We believe it’s about four billion, 600 million years old, halfway through its lifetime. It burns four million tons of hydrogen every second. The sun ...

Isaac Asimov described the solar system as the sun, Jupiter, and debris. He wasn't wrong—the sun is 99.8 percent of the mass of the solar system. But what is that giant ball of fire in the sky?

In 2025, the summer solstice will fall on Friday, June 20. Here are some fascinating facts to celebrate the celestial ...

How big it is: 865,000 miles (1.392 million kilometers) across How far away it is: 93 million miles (150 million km) What type of star it is: A yellow dwarf star The sun is the star at the center ...

5 fast facts about the sun Over 1 million Earths could fit inside the sun. The sun may look yellow from Earth, but it actually releases every color of light, meaning its true color is white .