For the third consecutiveyear, the Soviet Union is sending
a delegationof space scientiststo the conferenceto present results
from their own lunar missions, their Venus planetaryprobes and some recent meteorite crater examination.
The conferences,begun in 1970, were originallyused to share
the knowledgegained from the recentlyobtained lunar samples. The
first six Lunar Science Conferenceswere almost entirely involvedwith
lunar studies. More recently, lunar researchhas become increasingly
importantfor helping to understandthe other planets of the solar
system, and the last two conferences,in 1976 and 1977, includedmuch
more informationabout comparativestudies of such other worlds as
Mercry, Vens, Mars, and th asteroids. The name of this year's con-
ferencehas been changed to "Lnar and Planetary"to reflect the con-
tinuing trend for combinedstudies in planetaryexploration.
This year's conferenceis separated into seven main topics,
with sessionsoccurringsimultaneouslythroughoutthe week. The :sessions
are entitled: Constraintson Structure,Compositionand History of
Planetary Interiors;Characteristicsand Movement of Material on Lunar,
Planetaryand AsteroidalSurfaces;Characterizationand Evolution of
VolcanicLandforms;Characterizationand Evolutionof Planetary Crusts;
Nature and Effects of Impact Processes;Extraterrestria Materials;
Solar, Interplanetary,InterstellarProbes; and Earliest History of
the Solar System.