The Sun

Picture reveals tiny plasma whirlpool-like patterns that have never been seen before

Highest-ever resolution pictures of our star could help show why its corona is millions of degrees hotter than its surface

Almost everything alive on the surface of this planet runs, ultimately, on sunlight. Plants capture light and turn it into sugar. Animals eat the plants.

When the sun swells into a red giant about 5 billion years from now, Earth may escape being swallowed by the dying star, a new study suggests.

When the Sun reaches the end of its life in about five billion years, it will expand into a giant star hundreds of times larger than it is today. For decades, astronomers have debated what this means for Earth. Will our planet be swallowed by the expandin

Will the Sun roast Earth's plants or starve them?