If you sit at a fairly high latitude, you may want to keep an eye out your window Tuesday (April…
She's a rainbow! You can see the first moments of a huge flare belching off the sun in the picture…
A brief morning update (EST) from Karl Battams, who studies sungrazing comets at the Naval Research Laboratory, confirms social media…
Talk about the Comeback Kid. After Comet C/2012 S1 ISON rounded the sun yesterday afternoon, professional astronomers around the world looked…