On the Cover: Harrison Schmidt, now a U.S. Senator from New Mexico, investigated this giant boulder during the Apollo 17 mission to the Moon. The Apollo astronauts returned over 360 kilograms of lunar geological samples to Earth. The "Moon rocks" are now housed in the Lunar Curatorial Facility in Houston, Texas. NASA / Johnson Space Center
4 Discovering an Asteroid: Eleanor F. Helin describes how she discovered the best known candidate for an asteroid rendezvous mission.
7 The Care and Feeding of Lunar Samples: The Lunar Curatorial Facility: Michael Draketakes us on a tour of the facility and the effects of recent budget cuts.
10 Harold Clayton Urey: 1983–1981: Carl Sagan celebrates the life of one of the founders of modern planetary science.
12 News & Reviews Venus, Antarctica, and extraterrestrial life.
13 Society News Events, lectures, and thank yous.
14 Washington Watch Future NASA missions and administration changes.
Let's Change the World
Become a member of The Planetary Society and together we will create the future of space exploration.