The Collision of Comet P/Shoemaker-Levy 9 and Jupiter IAU Colloquium 156 Hosted by the Space Telescope Science Institute and The Johns Hopkins University 9-12 May 1995 Baltimore, Maryland USA The Collision of comet P/Shoemaker-Levy 9 (SL9) and Jupiter in July 1994 was one of the most dramatic astronomical events in the history of science. Almost every major observatory in the world participated in the observations of the spectacular collisions and their aftermath. Enormous quantities of data were recorded during the campaign. Preliminary analyses of a small fraction of the data have resulted in a flurry of reports, sometimes contradictory, propagated electronically and at ad hoc meetings. There has, however, been insufficient time for careful analysis or synthesis of the many different data sets available. On 9-12 May 1995 the STScI and JHU will host a meeting that will provide the first opportunity for a review of the SL9 campaign and a synthesis of a majority of the observational programs. This meeting is being held as part of the STScI's regular May symposium series and is sponsored by the IAU. The format of the meeting will provide a large amount of time for discussion and comparison of results. Invited reviews will be published by the Cambridge University Press and there will be a special journal issue for contributed papers. We anticipate that this meeting will attract a large attendance, possibly more than the 325 people that we can accomodate. Thus, attendance at the meeting will be by invitation, as is common with IAU colloquia. Invitations can be requested by contacting Cheryl Schmidt at the Space Telescope Science Institute (by email: email@example.com, by regular mail: Ms. Cheryl Schmidt, Space Telescope Science Institute, 3700 San Martin Drive, Baltimore MD 21218, USA, by phone: 410-338-4404).