Cover Stories:

• 1988: The year in science

• Comet controversy

• Bionic heart

• Human-powered flight

• Environment: The year the Earth struck back

• The patented mouse

• Computer viruses

• Alien ice volcanoes

• Turning cancer off

• Chemistry of voodoo

• The autistic brain

• Math's big tease

• The sixth Archaeopteryx

• Superconductivity, part II

• Baby condor

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