The JSOC is back up and running. The replays will be run to populate the various databases. Here's an image from August 22! Many thank...

This afternoon at 1920 UT (3:30 pm ET) SDO fired its thrusters to drive the reaction wheels to target levels. This was a planned firing. Th...

Near-realtime AIA images are currently unavailable. JSOC personnel are working on the problem and hope to have it fixed soon.

We see all sorts of things on the Sun and have named them all. Some names, such as chromosphere, make sense only if you speak an ancient la...

Comet ISON is a sungrazing comet whose closest approach to the Sun (perihelion) will happen on November 28, 2013. Comet ISON was discovered ...

The Moon traveled across the SDO field of view again this morning. Here's what it looked like in AIA 1600 at 1532 UTC (10:32 am ET). Yo...

When you see the Sun zipping through the SDO movies you know its time for a calibration maneuver. Last Wednesday we did an EVE cruciform, no...