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

The images show ultra-fine bright and dark stripes (called striations) in the thin, gaseous layer of the sun's atmosphere ...

Earth’s tilt is what causes the seasons; in the summer, when our planet’s pole is tipped toward the sun, the days are longer, ...

"The best advice for people is to limit time outside in the sun during peak heating hours if possible and to use sunscreen.