Sky Alert explores for the first time what our modern world would be like if we were suddenly to lose most, if not all, of our space satellites. We are now dependent on satellites in virtually all areas of life -- what would happen if they were to be suddenly destroyed?
A collection of original science fiction stories about interstellar travel by Ben Bova, Mike Resnick, Sarah Hoyt and others with behind-the-scene essays by scientists describing how it might actually be possible.
Decades after the last footprints were left on the Moon, the U.S. was preparing to return to the Lunar surface in a new class of rockets, when the mission suddenly became much more urgent. It would have to be a rescue mission.
The environmental challenges facing humanity today are too serious to be resolved only by conservation and current technologies. Rather than losing heart, we need to recognize that the answer to these problems lies in the development of space. Not only will extraterrestrial resources avert a crisis, but they will also provide the basis for continued technological and societal progress. The resources of the Solar System will help us meet our projected industrial needs. Space-based power generation systems will work synergistically with Earth-based conservation. Paradise Regained shows how environmentalists and space advocates can work together to achieve a common goal -- the regreening of planet Earth.
Solar sail propulsion will make space exploration more affordable and offer access to destinations within (and beyond) the solar system that are currently beyond our reach. This book describes solar sails, how they work and what they will be used for in the exploration of space in an easily readable manner which does not necessitate any prior knowledge of physics or solar sailing. It discusses current plans for solar sails and also describes how advanced technology, such as nanotechnology, might enhance solar-sail performance. Much has been accomplished recently to make solar sail technology very close to becoming an engineering reality and it will soon be used by the world’s space agencies in the exploration of the solar system and beyond.
Drawing parallels with the terrestrial pioneers who had to "live off the land" as they made their way across the face of the Earth, this book describes how space travelers will use the resources they encounter to sustain missions to the furthest reaches of the solar system and beyond. Many of the technologies and approaches discussed have little or no impact on the environment of space -- providing truly "green" roads to the cosmos!