Looking up in the sky may be a favorite pastime of yours, and if so, you may have spotted a common winter phenomenon.

NASA finds flickering coronal loops signal solar flares, paving the way for better space weather predictions and safety ...

The ring of light seen around the sun in areas of southern Louisiana today is a rare atmospheric phenomenon known as a sun ...

G3 (ATLAS) should be visible from the southern hemisphere, and possibly also the northern hemisphere, over the next few days ...

(For comparison, the sun is a middle-aged star about 5 billion years old—about 1,000 times older.) In this image of NGC 2264, which is much closer than NGC 602 at a distance of about 2,500 light ...