PLANETARY EXPLORATION NEWSLETTER Volume 4, Number 50 (November 18, 2010) PEN Website: http://planetarynews.org Editor: Mark V. Sykes Co-Editors: Susan Benecchi, Melissa Lane Email: pen_editor at psi.edu o---------------------------------------------------------------------o [SPECIAL EDITION] BRIAN MARSDEN (1937-2010) It is with deep sorrow that we announce the death of Brian Marsden today, long-time director of the Minor Planet Center, well-known small bodies scientist, and central figure in the great planet debate. An obituary has been posted at http://www.minorplanetcenter.org/mpec/K10/K10W10.html *********************************************************************** * The Planetary Exploration Newsletter is issued approximately weekly. * Current and back issues are available at http://planetarynews.org * * To subscribe, go to http://planetarynews.org/pen_subscribe.html * * To unsubscribe, go to http://planetarynews.org/pen_unsubscribe.html * * Please send all replies and submissions to pen_editor at psi.edu. * Announcements and other messages should be brief with links to URLs * for extended information, including detailed descriptions for job * announcements. Title plus text is limited to 200 words. Go to * http://planetarynews.org/submission.html for complete submission * directions. * * PEN is a service provided by the Planetary Science Institute * (http://www.psi.edu). ***********************************************************************