Paul R. Weissman

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...

From the Editors Go Ahead, Walk in the Mud Percy Bysshe Shelley's poem Ozymandias describes the cracked and toppled statue of an ancient potentate: "My name is Ozymandias, king of kings: Look on my works, ye Mighty, and despair!" The destruction of his once great empire might be mistaken as...