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 Mars: Prospective Energy and Material ResourcesThe manned mission is seen as a first step towards a Mars surface exploration base-station and, later, establishing permanent settlement. The location and use of Mars’s natural resources is vital to enable cost-effective long-duration human exploration and exploitation missions as well as subsequent human colonization. Planet resources... |  |  How Do Hybrid Cars Work? (Science in the Real World)In recent years, there has been much concern about the world's reliance on nonrenewable resources, such as oil. Scientists are attempting to decrease our dependency on oil - something cars require to work. Hybrid cars, which run on alternative energy sources like sunlight, corn, and biofuels, may be the key to using less oil. "How Do Hybrid... |  |  How Does a Spacecraft Reach the Moon? (Science in the Real World)The Moon is very far from Earth. Yet, scientists have been able to get satellites, shuttles, and other spacecraft into space and a few manned spacecraft to land on the Moon. "How Does a Spacecraft Reach the Moon?" reveals the science behind propulsion and the energy it takes to get large craft into space. Colorful photographs and... |
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