Mountains have finally stopped hailing down on Jupiter, and the debris from their catastrophic impacts has started to settle. Here on Earth, the information superhighway is coming unclogged as Internet users relax their manic electronic search for comet-crash pictures. And except for an observing session next week and another in late August, the Hubble Space Telescope is moving on to view other heavenly objects.
But amateur astronomers are still peering intently through their backyard telescopes to get a glimpse of the bruises that Shoemaker-Levy 9 left on Jupiter -- the most prominent features ever seen on the giant planet -- and...