Wall Street is reluctant to back a resurgence of nuclear power
A ban ends, and antisatellite weapons make a comeback
The discoverer of bat "sonar" thinks about animals' thoughts
Scientists ponder the role of clouds in climatic change
U.S. fusion workers chafe under security restrictions
"Limited" antimissile schemes are gaining in popularity
Will fusion-energy reactors be "too complex and costly"?
The supercollider will be built in Texas-if it is built at all
The future for space science looks bright-or does it?
Politicians hear but do not heed scientists' advice on drug abuse
As START stalls, arms controllers focus again on nuclear testing
Electrodes in the brain maysomeday-aid paralysis victims
Do the lessons of the Iranian Airbus tragedy apply to SDI?
Did the U.S. "misrepresent" a key piece of evidence?
Opposition to U.S. research in biological warfare intensifies
Can it contain our deadliest nuclear waste for 10,000 years?
A new study rekindles a debate over the roots of warfare
Can the U.S. monitor cuts in strategic nuclear missiles?
NASA suffers new problems, both technical and political
The U.S. resumes production of lethal nerve-gas weapons.