Around the world before sunrise Thursday, the moon and Venus will be close in the east before dawn. The bright star nearby is Aldebaran in Taurus the Bull.
This year's Perseid shower is drowned in moonlight. Next best opportunity for meteor-watching is now to early August. Watch between midnight and dawn, when the moon is down.
Researchers identified simple behavioral rules that allow these tiny creatures to collaboratively build elaborate structures - rafts and towers - with no one in charge.
