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Planetary ScienceEchoes of Icequakes: Simple probe could measure Europa’s ocean and icy shell
A football-size space probe could provide a low-cost way to determine whether there's a liquid ocean on the Jovian moon Europa.
By Sid Perkins -
Neural Shape-Up: Brain anticipates object perception
A new brain-scan study indicates that so-called higher visual areas predict the structure of incoming visual information and suppress activity in the visual system's entry area to foster object recognition.
By Bruce Bower -
EarthMore Frog Trouble: Herbicides may emasculate wild males
New studies of male frogs in the wild link trace exposures to common weed killers with partial sex reversal.
By Janet Raloff -
Health & MedicineA hint at a healthful effect of beer
Beer consumption seems to boost concentrations of vitamin B6 in blood and coincides with lower concentrations of homocysteine, a risk factor for heart disease.