Islands in Space: The Challenge of the Planetoids |
Contents
Acknowledgments | 1 |
The Legacy of an Italian Goddess | 9 |
Chapter 4 | 30 |
Copyright | |
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Common terms and phrases
48 VIII albedo aphelion assume Asteroids astronauts Astronomical Journal astronomical units atmosphere body bomb booster captured planetoid carbon celestial Ceres chemical close close-approach planetoid colonies comets cosmic cost discovered discovery distance Ecliptic coordinates referred energy equinox of 1950 Eros estimated exploration extraterrestrial feet per second fly-by future Geographos gravity HERGET hydrogen Hypotheticus important interplanetary flight islands Jupiter linear motor Low Earth orbit major Martian mass Mean Anomaly Measured M Mean Mercury meteorites miles in diameter million miles Minor Planet Circular minor planets moon Name mo g nuclear object payload perhaps perihelion Phobos planetary planetoid possible predict probably probes problems propellants propulsion radiation referred to vernal relatively rocket satellites Saturn scientific scientists Sky and Telescope solar system spaceflight spaceship stars surface target theory thousand feet tion transportation trip unmanned velocity change Venus vernal equinox Willy Ley