NASA’s new PUNCH mission just opened its eyes to space, capturing its first images of the Sun’s outer atmosphere and the ...

The NSSL, extending about 35,000 km beneath the Sun’s surface, is a region where rotational dynamics undergo dramatic ...

The visible surface of the sun, called the photosphere, is about 10,000 degrees Fahrenheit, according to Space.com. Strangely, the outermost layer of the sun's atmosphere-the corona-is much hotter ...