The sun’s outer atmosphere resembles a pufferfish.

The sun is the biggest object in the solar system; at about 865,000 miles (1.4 million kilometers) across, it's more than 100 times wider than Earth. Despite being enormous, our star is often called a ...

When a dramatic solar video began circulating earlier this year, it looked like something out of science fiction: a bright filament at the Sun’s north pole appeared to shear away and whirl around the ...

Imagining every drop of Earth’s water hurled into the Sun sounds like a last-ditch cosmic fire extinguisher, but the physics points in a very different direction. Instead of snuffing out our star, ...