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Math

Chaotic Moon

Saturn's craggy moon Hyperion tumbles erratically as it orbits the planet.

Humans

From the October 12, 1935, issue

Gasoline shortages and frozen bread.

Earth

Iceberg Thrills

The Ocean World Web site offers lessons devoted to icebergs, accompanied by dramatic images. Students can learn about the different colors of icebergs, their classification, and their life cycle. The Web site also presents the dangers that icebergs pose to people as well as their potential benefits to desert dwellers. It includes a glossary and […]

Animals

Proxy Vampire: Spider eats blood by catching mosquitoes

Researchers studying food preferences among spiders report finding the first one with a taste for vertebrate blood.