NASA described that the stars appear in blue and white lights because of the X-rays they give off, which the Chandra X-ray ...

NASA is getting into the festive spirit, sharing some stunning images of the Christmas Tree Cluster and the Cosmic Wreath.

The US Space Agency released an image of NGC 2264, a group of young stars, that's also known as the Christmas tree cluster ...

"These X-rays are powered by winds flowing from the young, massive stars that are sprinkled throughout the cluster," NASA ...