NASA explained that the flare was classified as an X1.9 flare. X-class flares are the most powerful type of solar flares. The number 1.9 shows how strong the flare was within this highest category.

NASA's new CMEx mission will measure the Sun's chromosphere magnetism, the origin of solar storms, hoping to improve solar ...

NASA has selected a proposed solar mission for further study as part of its Small Explorer programme, extending early design ...

The Sun has never looked quite like this. With a quartet of small satellites flying in formation, NASA’s PUNCH mission is stitching together a seamless, cinematic view of solar eruptions as they leave ...

NASA had a special Christmas gift last year. On December 24, the Parker Solar Probe reached the closest it will ever get to the Sun. As it flew just 6.1 million kilometers (3.8 million miles) from its ...

On its record-breaking approach to the sun late last year, NASA's Parker Solar Probe captured stunning new images from within the sun's atmosphere. These newly released images—taken closer to the sun ...

NASA’s Parker Solar Probe passed the sun last year, snapping images that NASA released July 10. The images were taken 3.8 million miles from the solar surface, which is the closest any probe has ever ...

A NASA mission to study the heliosphere—the sun's magnetic bubble that shields our solar system—and develop a better understanding of space weather was launched from the agency's Kennedy Space Center ...