Contents

25 June 1976
Vol 192, Issue 4246

About The Cover

Laser geodynamic satellite, Lageos. The satellite, whose actual diameter is 2 feet, has 426 retroreflectors on its exterior. Data from the satellite should aid in the development of techniques for the prediction of earthquakes. See page 1293. [Goddard Space Flight Center, National Aeronautics and Space Administration, Greenbelt, Maryland]