Matter & Energy

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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.

RADIO REFLECTIONS  To send messages via the moon, ham radio operators send radio waves some 384,000 kilometers to the Earth’s natural satellite. The waves bounce and hopefully are received by a ham radio user somewhere else.

tiny semiconductor particles

DAZZLING DOTS  Tiny semiconductor particles called quantum dots light up mouse intestines in this microscope image. Red and green represent proteins illuminated by fluorescing quantum dots. Cell nuclei are stained blue with a traditional dye not involving quantum dots.

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