the “Christmas ... Tree Cluster, with its X-ray blue and white lights blinking ... [+] in this animated version. Bright and well-placed in December, NGC 2264 is roughly between the bright ...

Few items bring as much festive cheer to a home as a Christmas tree, but you don't just ... attach the star (cut from a square piece of wood) to the top and the four 6-inch pieces to the exposed ...