Roger Knacke

FOCAL POINTCometary Studies Come of AgeAbout a century ago, Mark Twain . noted with characteristic wit his amusement at the vast range of speculation that can result from a very meager piece of scientific data. Comets have always yielded abundant data but relatively little understanding.Were he...

Mystery on the Desert The Nazca LinesF ROM LIMA the Pan American High-way winds south along the Peruvian coast through a succession of river valleys until it reaches the sleepy town of Nazca, population 20,000. For the residents it is a farming center, one that was old before the Spanish arrived...