By erik bergaust

ISBN-10: 0399204717

ISBN-13: 9780399204715

Discusses house exploration via manned and unmanned flights and speculates approximately planetary colonization.

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Extra resources for Colonizing the Planets - The Factual Story of Manned Interplanetary Flight into the 21st Century

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Actual pictures of the Venusian landscape may then be sent back to Earth for study. After intensive study of the greenhouse planet with —probably over a period of some capable of going to work on the unmanned vehicles twenty-five years first manned and probes —we should be mission. The First Manned Expeditions Before the end of the 1960-1970 decade predicted that Blueprints men will for interplanetary go to the planets many space scientists by the end of the century. spacecraft, using conventional chemical rocket propellants such as those in the Apollo program, have been presented by space experts since the early 1950's.

For a one-way flight to much higher speed. to carry it Just a to set foot craft so the planet the spacecraft need not reach a very trifle out of the Earth's For man orbit Mars more than escape velocity is enough field. on Mars he must can "capture" first The it. slow down his space- ship then enters into an around the planet, and the explorers can then go down Mars' surface in a landing capsule that, of course, must provide rocket propulsion for takeoff from Mars' surface to orbit surface mission is completed.

In 1964 it was confirmed by the use rotation period of American scientists in of the newly erected huge radio telescope with a 1 ,000-foot antenna THE GODDESS OF BEAUTY AS A GLOBE / 37 dish just completed at Arecibo, Puerto Rico. of Venus was found to be 247 ± The retrograde period 5 days. remains a complete mystery to scientists It in the opposite direction —backward why Venus rotates or counterclockwise —com- pared with the other planets in the solar system. The theories try- phenomenon vary, and some sound fantastic.

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Colonizing the Planets - The Factual Story of Manned Interplanetary Flight into the 21st Century by erik bergaust

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