When will the next big solar flare occur? How much damage could it cause to power lines and satellites? These…
She's a rainbow! You can see the first moments of a huge flare belching off the sun in the picture…
Call it the eclipse nobody saw. NASA's Solar Dynamics Observatory (SDO) got its own private solar eclipse showing from its…
Talk about the Comeback Kid. After Comet C/2012 S1 ISON rounded the sun yesterday afternoon, professional astronomers around the world looked…
How does the sun's energy flow? Despite the fact that we live relatively close (93 million miles, or eight light-minutes)…
Last night, as Commander Hadfield and the Expedition 35 crew were returning to Earth in their Soyuz spacecraft, the Sun…
If that title seems like an obvious statement to you, it's ok... it seems pretty obvious to me too. But…
Active Region 1654 on the Sun's western limb, seen by SDO on Jan. 11 (NASA/SDO/HMI team. Diagram by J. Major.)…
Remember that cool animation I posted earlier of AR1520 and how I said there's no guarantee it wouldn't unleash an…