Scientists Pick Up Pieces of Genesis Space Capsule By PAUL FOY     DUGWAY PROVING GROUND, Utah (AP) -- Scientists with tweezers picked through the twisted wreckage of a space capsule that crash-landed on Earth, hoping that microscopic clues to the evolution of the solar system weren't completely lost in Utah's salt flats.    NASA engineers were stunned Wednesday when neither parachute deployed aboard the Genesis capsule and the craft plummeted to the ground at 193 mph, breaking open like a clamshell and exposing its collection of solar atoms to contamination...