Feature

Asian Human-Origin Theory Gets New Teeth

Voyager 2 Enters Home Stretch to Neptune

Making the Right Stuff

Neptune on the Horizon

Upside-down Spider

Dubious Demonstration

AZT Helps in Early AIDS

Cautious Conclusion

More Veggies Join Fight against Lung Cancer

Cloudy Concerns

Chemists Probe New Crystalline Vistas

Cutting Away DNA the Mitochondrial Way