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Planetary SciencePebbles from Heaven: Tracking planets in the making
Recording radio waves from the region around a young star, astronomers have for the first time documented the making pebbles, a key step in the rocky road to planethood.
By Ron Cowen -
EarthBacteria Ride the Tide: Moon’s phases predict water quality at beaches
At many ocean beaches, full and new moons coincide with the greatest concentrations of bacteria in the water.
By Ben Harder -
Muscle Men: Lab-grown cells mirror source’s characteristics
Researchers studying muscle cells maintained in petri dishes burn sugar and fat with the same efficiency as do the people from whom the cells are isolated.
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ChemistryInside a melting crystal
A model crystal made of water-saturated polymer spheres shows that small defects in a crystal can cause it to melt from the inside out.