Our @ChandraXray Observatory recently spotted the blue-and-white lights that decorate the "Christmas Tree Cluster," a swarm of stars and gas some 2,500 light-years from Earth: https://t.co ...

NASA “The blue and white lights are young stars that give ... MACS0416 has been dubbed the “Christmas Tree Galaxy Cluster” because “it’s so colorful and because of these flickering ...

sharing a composite image of a formation of young stars in the Milky Way the agency dubbed the "Christmas Tree Cluster" for its bright green glow and accompanying blue and white lights.