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Lifetime of Complex Life
Topic:
Spaceship Earth
07/24/02
Stars grow hotter as they age, and habitable planets orbiting them become uninhabitable. How long can complex life flourish?
Earthshine
Topic:
Spaceship Earth
06/02/02
When the crescent moon is just a sliver each month, the phrase--'old moon in the young moon's arms'-- poetically describes a marvel of nature.
Watching Earth Breathe
Topic:
Spaceship Earth
06/06/01
The first continuous global observations of the biological engine that drives life on Earth will be used by scientists to study the fate of carbon in the atmosphere, the length of terrestrial growing seasons and the vitality of the ocean's food web.
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