Feature
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- Tech
Ribbon to the Stars
Advances in one of the tiniest of technologies—carbon nanotubes—is bringing the concept of a space elevator closer to reality.
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A Man’s Job
Sperm contain an unexpected payload of RNA, a discovery offering insight into infertility, cloning, and contraception.
- Animals
Music without Borders
When birds trill and whales woo-oo, we call it singing. Are we serious?
- Health & Medicine
The New GI Tracts
For preventing heart disease, diets that control insulin are all the buzz.
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Pushing the Mood Swings
Social and psychological forces sway the course of manic depression.
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- Materials Science
The Buck Starts Here
The U.S. Mint performed some neat tricks to make a golden dollar.
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Get Rid of the Bodies
Scientists are learning how organisms safely clear out cell corpses.
- Materials Science
Materials with Memory
Metal alloys and polymers that can remember a preprogrammed shape may literally reshape technologies ranging from warfare to medicine and car repair.
- Tech
Looking for Mr. Goodoxide
The impending collapse of a 40-year union between the electronic wonder materials silicon and silicon dioxide threatens the advance of chip technology and propels a high-stakes search for silicon dioxide replacements.
- Earth
Greenhouse Gassed
Scientists are discovering that more carbon dioxide in the air could spell disaster for plants and the animals that love to eat them.
