... A Halo for NGC 6164 . ... Beautiful emission nebula NGC 6164 was created by a rare, hot, luminous O-type star, some 40 times as massive as the Sun. Seen at the center of the cosmic cloud, the star is a mere 3 to 4 million years old. A Spring Sky Over Hirsau Abbey . ... When strolling outside just after sunset, even if just going out to your car, a casual glance upwards can reveal a beautiful night sky also seen by many people across the Earth. ... NGC 4631 is a big beautiful spiral galaxy. ...