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Human Exploration of Mars : The Reference Mission of the NASA Mars Exploration Study Team NASA

Human Exploration of Mars : The Reference Mission of the NASA Mars Exploration Study Team

NASA

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Kindle Edition
260 pages
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 About the Book 

Mars has long beckoned to humankindfrom its travels high in the night sky. Theancients assumed this rust-red wanderer wasthe god of war and christened it with thename we still use today.Early explorers armed with newlyinvented telescopesMoreMars has long beckoned to humankindfrom its travels high in the night sky. Theancients assumed this rust-red wanderer wasthe god of war and christened it with thename we still use today.Early explorers armed with newlyinvented telescopes discovered that thisplanet exhibited seasonal changes in color,was subjected to dust storms that encircledthe globe, and may have even had channelsthat crisscrossed its surface.Recent explorers, using roboticsurrogates to extend their reach, havediscovered that Mars is even more complexand fascinating—a planet peppered withcraters, cut by canyons deep enough toswallow the Earth’s Grand Canyon, andshouldering the largest known volcano in thesolar system. They found intriguing evidencethat water played an important role on Marswith channels that bear a strikingresemblance to stream beds and clouds ofcrystalline ice that still traverse its red sky.But they also found that Mars was cold anddry, and believed to be devoid of life.Now present day explorers haveannounced that pieces of Mars have arrivedon Earth as meteorites, and that these bits ofthe red planet contain evidence pointing tothe possible existence of life early in Marshistory. This has resulted in renewed publicinterest in this fellow traveler of the solarsystem, adding impetus for exploration.