SN Online SN Online By Science News July 29, 2011 at 1:07 pm - More than 2 years ago Share this:Share Share via email (Opens in new window) Email Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Print (Opens in new window) Print 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.”