1.   As the ball was coming down, three Pacers watched it as if looking at some astronomical phenomenon.

2.   Bibbi Ahrnstedt, a Swedish artist, domesticates the universe, incorporating astronomical phenomena into glass dinner plates.

3.   Doggett was an expert in calendars, astronomical phenomena, planetary theory and the evolution of astronomy.

4.   Once an astronomical phenomenon is detected, they noted, other observers know what to look for and are likely to find more examples.