Number 133 (Story #2), June 17, 1993 by Phillip F. Schewe and Ben Stein COMET SHOEMAKER-LEVY 9 has been torn by Jupiter's gravity into a string of fragments, and worse is to come: according to Brian Marsden of Harvard-Smithsonian, the train of comets will strike Jove itself in July 1994. If the collision were to occur on the front side of the planet (which it will not), the resulting explosion would be visible from Earth by day. The impact will be comparable in energy to the dinosaur-killing KT impact on Earth. (Nature, 10 June 1993.)