sunspot

Yet Another X-Class Flare From AR 1748

Last night, as Commander Hadfield and the Expedition 35 crew were returning to Earth in their Soyuz spacecraft, the Sun…

11 years ago

AR1654 is a Monster Sunspot. (And It’s Aiming Our Way.)

Active Region 1654 on the Sun's western limb, seen by SDO on Jan. 11 (NASA/SDO/HMI team. Diagram by J. Major.)…

11 years ago

HI-C Returns Most Detailed Images Ever of the Sun’s Corona

NASA's High Resolution Coronal Imager (Hi-C) mission, launched Wednesday, July 11 from White Sands Missile Range in New Mexico, successfully returned…

12 years ago

A Shimmering, Simmering Sunspot

This quick animation made by astrophotographer Alan Friedman shows a 30-minute view of sunspot 1520, a large region of magnetic…

12 years ago

A Rare Type of Solar Storm Spotted by Satellite

[/caption] When a moderate-sized M-class flare erupted from the Sun on May 17, it sent out a barrage of high-energy…

12 years ago

Earth-Facing Sunspot Doubles in Size

[/caption] The latest sunspot region to traverse the face of the Sun has nearly doubled in size as it aims…

12 years ago