Volume 19, number 2
Ices in the Solar System
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(Planetary Society members only)
4 Grand Challenges for Space Exploration: It's not often that a government official gets to lay out a vision for the future that goes beyond the next election cycle. But Wes Huntress, who recently stepped down as NASA's Associate Administrator for Space Science, did just that in a speech accepting the Carl Sagan Medal of the American Astronomical Society. Wes' text was far-ranging and detailed, and we had space in the printed magazine for only highlights of his talk.
8 "Ices" in the Solar System: A Tour of Condensible Species: Wendy Calvin of the USGS takes us on a tour through a garden of alien ices throughout the solar system, which consist of far more than just frozen water.
14 Building Toward Mars: A Vision for the Future: Charles Elachi and Louis Friedman summarize the findings of NASA's Mars Architecture group, studying and suggesting ways to get the most out of robotic exploration.
3 Member's Dialogue Space: Getting from there to here; ice on the Moon.
19 News & Reviews Nomenclature junkets; Pluto's taxonomy.
20 Q&A What are the fastest moving objects in the solar system?
22 Society News Mars Microphone, Planetfest '99, LEGO Mars rovers, and Optical SETI.