July 23 Postings

Is there life on Europa, one of Jupiter's moons? DISCOVER gives an unequivocal, "we don't know" and explains the basis for the question.
Why do birds sometimes attack their images in car mirrors and other reflections? DISCOVER discusses territoriality in birds. I probably shouldn't say anything about bird brains.
After the hurricane winds die down, the real task begins. ARRL reports how ham radio operators help put things back together.