SPLASH ZONE  A periodically plunging planet causes these spiral waves in the belt of debris surrounding the star Beta Pictoris, as seen in this computer simulation.

rose

FLAUNTING FRAGRANCE   By comparing a sweet-smelling Papa Meilland rose (shown) with a bland bloom, researchers discovered a surprising enzyme critical to roses' aroma-making.

cockroach-inspired robot

TIGHT FIT  A cockroach-inspired robot can get stuck as it moves through narrow gaps in an obstacle course of stiff paper strips (bottom). But adding an arched shell to the machine (top, right) lets it turn sideways (bottom, right), helping it scuttle through cracks.

Geophilus hadesi centipede

UNDERWORLD  This male Geophilus hadesi centipede was found over 1,000 meters belowground in a cave in Croatia. G. hadesi is the deepest-dwelling centipede yet discovered. 



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