Industries Tally Air Pollution Poorly

Companies' reports of how much ozone-forming pollution they spew bear little semblance to reality.

Parkinson's disease gene mutation found

A mutant gene that causes Parkinson's disease may also have a link to Alzheimer's disease.

Marijuana's effects tracked in rat brains

Marijuana's active ingredient produces effects on rat brains much like those observed for alcohol, cocaine, and heroin.

AZT shows promise as breast cancer fighter

AZT, the anti-AIDS drug, works against breast cancer in laboratory rats.

Channeling quantum information efficiently

By carefully choosing how a message is encoded and decoded, it's possible to approach the theoretical maximum for transmitting information via photons or other quantum particles.

Picky protozoa may sense poison in prey

Algae may deter protozoan predators by producing a toxin when eaten.

Astronomers get new spin on black holes

The first measurements of spin of black holes reveal a link between the rotation and the emission of high-speed jets of debris.

Genes induce human obesity

Scientists have finally found genetic mutations that cause obesity in people, though such mutations are probably quite rare.

Articles:

Stalking the Ancient Dog

Man's best friend may go way back

Analyses of canine DNA suggest that dogs may have been domesticated from wolves much earlier than researchers had thought.

Return to the Red Planet

Tiny rover set to explore Mars

The Mars Pathfinder is scheduled to parachute onto the Red Planet on July 4 and release a small, six-wheeled rover to explore soil and rock near the spacecraft.

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