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The Planetary Report • March/April 1984

Samples from Space

On the Cover: Scientists have applied a wide range of techniques to analyzing extraterrestrial materials. This microscopic photograph (a little over one millimeter across the field of view) of a lunar basalt was made by shining polarized light through a wafer of rock (30 micrometers thick). The shapes and sizes of the minerals indicate that the rock crystallized in a lava flow. Pyroxene appears as orange and blue; the gray is feldspar.
Courtesy of G. Jeffrey Taylor


3 Getting Our Hands on the Universe: Bevan M. French explains how rocks from space tell us about the solar system.

4 Moon Rocks: Still New Questions About an Old Moon: G. Jeffrey Taylor showcases how samples from Apollo, along with lunar meteorites, are teaching us about our celestial neighbor.

7 Meteorites: Little Rocks with Lots of History: Harry Y. McSween, Jr. summarizes some of the most exciting recent discoveries and unsolved problems in meteorite research.

9 Cosmic Dust: Donald E. Brownlee discusses how the smallest pieces of the solar system are beginning to tell us their stories.

12 Meteorites on Ice: Ursula B. Marvin highlights the hunt for meteorites in Antarctica.

16 The Resources of Space: Larry A. Haskin looks at mining the Moon and asteroids.

18 The Long Reach: Bevan M. French describes how machines may collect our next samples from other worlds.


15 News & Reviews Voyager Saturn encounters; planetary perspective on nuclear war.

20 World Watch The President's budget proposal for NASA; considering a space station.

21 Society Notes Sally Ride joins advisors, naming the Venus Radar Mapper, and Halley Watch.

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