SN Online

SN Online

By Science News

ATOM & COSMOS
NASA’s Dawn spacecraft enters orbit around the asteroid Vesta. Read “Dawn on Vesta.”

MOLECULES
Tasting fat gives rats the munchies. See “Fat stimulates binge eating.”

BODY & BRAIN
Armor-clad knights use about twice as much energy to move as non-armored fighters. Read this tale and others in “News in Brief: Body & Brain.”

GENES & CELLS
Researchers debate genes’ role in autism disorders. See “Environment blamed for autism.”

A version of this article appears in the August 13, 2011 issue of Science News.

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