Space & PhysicsMay 1, 1960
The Exploration of the Moon
The importance of the enterprise is increased by the fact that the surface of the moon, lacking an erosive atmosphere, has preserved a record of the history of the solar system
Stories by Robert Jastrow
Space & PhysicsAugust 1, 1959
Artificial Satellites and the Earth's Atmosphere
In the auroral zones the upper atmosphere is much wanner than it is over the Equator. Satellite data attribute this effect to solar particles trapped in the earth's great radiation belts