Notebook
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The Big Birdcast
Track the autumn migration of birds across the eastern portion of the United States at the BirdCast Web site. The site presents daily analyses of weather radar images to predict migration activity and patterns. Birdwatchers can also report their observations to help scientists refine such analyses and pinpoint the favored resting places of these feathered […]
- Planetary Science
Planets in Autumn
On Sept. 22, Earth joined two other worlds in the solar system where it is northern autumn. At this NASA Web site, learn more about Earth’s September equinox and ponder the bizarre seasons of other planets. Go to: http://science.nasa.gov/headlines/y2000/ast22sep_1.htm?list110076
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Snap, Whistle, Pop at Sea
The depths of the ocean are a noisy place.
