sun
This Was the Best Watched Solar Flare Ever
Are giant dragons flying out of the Sun? No, this is much more awesome than that: it's an image of…
Spectacular Aurora Sneaks in Quietly, Rages All Night
Expect the unexpected when it comes to northern lights. Last night beautifully illustrated nature's penchant for surprise. A change in…
Aurora Alert: Powerful Solar Flare This Weekend Could Spark Show Tomorrow
If you sit at a fairly high latitude, you may want to keep an eye out your window Tuesday (April…
Astrophotos: Sun Halo, Crescent Moon and Earthshine
Here's a few great astrophotos for today! Astrophotographer César Cantú from the Chilidog Observatory in Monterrey, Mexico captured this stunning…
Yesterday’s Mammoth Solar Flare Is The Biggest Of 2014 So Far
She's a rainbow! You can see the first moments of a huge flare belching off the sun in the picture…
Dazzling New Views of a Familiar Cluster
Wow. It’s always amazing to get new views of familiar sky targets. And you always know that a “feast for…
A Mesmerizing Look at Year 4 of the Solar Dynamics Observatory
Four years ago today, the Solar Dynamics Observatory embarked on a five-year mission to boldly go where no Sun-observing satellite…
Giant sunspot convulses but all quiet on the aurora front … for now
What a crazy sunspot cycle. Weeks go by with only a few tiny spots freckling the sun, then all at…
A Secret Solar Eclipse from Outer Space
Call it the eclipse nobody saw. NASA's Solar Dynamics Observatory (SDO) got its own private solar eclipse showing from its…
Monster Sunspot Erupts with an X-Class Flare
Solar astronomers have been keeping an eye on giant sunspot AR1944, and as it turned towards Earth today, the sunspot…