pstrongEvery minute several huge snowballs break up as they approach the Earthstrong and deposit a large cloud of water vapor in Earth's upper atmosphere. That's the startling finding of world-renowned physicist Louis A. Frank after an examination of the images relayed from the Dynamics Explorer 1 spacecraft. His conclusion, based on data acquired at the limits of detection, created a storm of controversy among scientists. This is the story that was told in emThe Big Splashem, published in 1990. But the story does not end there.ppLess than a decade later, Frank's discovery of these previously undetected small comets was confirmed when images were received from cameras aboard a different spacecraft named Polar. The news of this vindication of Frank's provocative theory in 1997 made the front pages of several large metropolitan newspapers, including emThe New York Times, The Philadelphia Inquireemr, and emThe Washington Postem.ppemCosmic Rainem, a greatly expanded edition of emThe Big Sp