America's Space Sentinels

America's Space Sentinels PDF

Author: Jeffrey Richelson

Publisher:

Published: 1999

Total Pages: 360

ISBN-13:

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During much of the Cold War, America's first line of defense was in outer space: a network of secret satellites that could provide instant warning of an enemy missile launch. The presence of these infrared sensors orbiting 22,000 miles above the earth discouraged a Soviet first strike and stabilized international relations between the superpowers, and they now play a crucial role in monitoring the missile programs of China, India, and other emerging nuclear powers. Jeffrey Richelson has written the first comprehensive history of this vital program, tracing its evolution from the late 1950s to the present. He puts Defense Support Program operations in the context of world events - from Russian missile programs to the Gulf War - and explains how DSP's infrared sensors are used to detect meteorites, monitor forest fires, and even gather industrial intelligence by "seeing" the lights of steel mills.

Sentinels of the Sun

Sentinels of the Sun PDF

Author: Barbara B. Poppe

Publisher: Big Earth Publishing

Published: 2006

Total Pages: 214

ISBN-13: 9781555663797

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"Sentinels of the Sun: Forecasting Space Weather". This book takes an in-depth look at how space weather affects us. Authors Barbara Poppe with Kristen Jorden.

The Sentinel

The Sentinel PDF

Author: Arthur Clarke

Publisher:

Published: 2011-05-11

Total Pages: 0

ISBN-13: 9781596874589

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'Clarke is one of the greatest imaginative writers of hard science fiction' New Scientist 'Arthur Clarke is one of the true geniuses of our time' Ray Bradbury 'Arthur C. Clarke is the prophet of the space age' The Times 'A one-man literary Big Bang, Clarke has originated his own vast and teeming futurist universe' Sunday Times '3001 is not just a page-turner, plugged in to the great icons of HAL and the monoliths, but a book of wisdom too, pithy and provocative' New Scientist 'Arthur C. Clarke is blessed with one of the most astounding imaginations ever encountered in print' New York Times 'One of the truly prophetic figures of the space age! the colossus of science fiction' New Yorker --This text refers to an out of print or unavailable edition of this title.

Navigating the Stars

Navigating the Stars PDF

Author: Maria V. Snyder

Publisher: Maria V. Snyder

Published: 2018-12-01

Total Pages: 363

ISBN-13: 1946381020

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2019 PRISM Award Winner! “The answer is no, Lyra,” my mother utters her favorite—I swear—phrase. No means I have to travel with them to another planet—again. No means leaving all my friends fifty years in the past. Thanks, Einstein. Seventeen-year-old Lyra Daniels can’t truly blame Einstein or her parents for their impending move across the Milky Way Galaxy. It’s all due to the invention of the Q-net, which made traveling the vast distances in space possible—with one big caveat: the time dilation. But that never stopped Lyra's ancestors from exploring the Milky Way, searching for resources and exoplanets to colonize. What they didn’t expect to find is life-sized terracotta Warriors buried on twenty-one different exoplanets. ... Make that twenty-two. As the Galaxy’s leading experts on the Warriors, Lyra's parents are thrilled by the new discovery, sending them—and her—fifty years into the future. Her social life in ruins, she fills her lonely days by illegally worming into the Q-net. The only person close to her age is the annoyingly irresistible security officer who threatens to throw her into the brig. After the planet they just left goes silent—meaning no communications from them at all—security has bigger problems to deal with than Lyra, especially when vital data files go missing. But that's just the beginning, because they’re not as alone as they thought on their new planet... and suddenly time isn't the only thing working against them.

Defending the Galaxy

Defending the Galaxy PDF

Author: Maria V. Snyder

Publisher: Maria V. Snyder

Published: 2020-11-23

Total Pages: 391

ISBN-13: 1946381039

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Year 2522. Oh. My. Stars. Junior Officer Ara Lawrence here, reporting for duty. Again. It's situation critical for the security team and everyone in the base - including my parents - with a new attack from the looters imminent, a possible galaxy-wide crime conspiracy and an unstoppable alien threat. But this all pales in the face of my mind-blowing discovery about the Q-net. Of course, no one believes me. I'm not sure I believe me. It could just be a stress-induced delusion. That's what my parents seem to believe... Their concern for me is hampering my ability to do my job. I know they love me, but with the Q-net in my corner, I'm the only one who can help the security team beat the shadowy aliens from the pits we discovered. We're holding them at bay, for now, but the entire Milky Way Galaxy is in danger of being overrun. With battles on too many fronts, it's looking dire. But one thing I've learned is when people I love are in jeopardy, I'll never give up trying to save them. Not until my dying breath. Which could very well be today...

The Devil's Hand

The Devil's Hand PDF

Author: Jack McKinney

Publisher: Del Rey

Published: 1988

Total Pages: 230

ISBN-13: 9780345353009

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It was 2020. Six years had passed since the destruction of the Super Dimensional Fortresses 1 and 2, that final tragedy of the First Robotech War. But Earth was on the mend now, and from the wreckage of those ships the Robotech Defense Force had succeeded in fashioning a new battle fortress -- the SDF-3. Its mission: to cross the galaxy and make peace with Tirol's Robotech Masters. It sounded straightforward enough; but unknown to Admirals Rick and Lisa Hunter and their crew of thousands, the Robotech Masters were already on their way to Earth! Nevertheless Tirol would have a greeting in store for the Expeditionary Mission: an incendiary salute from the warlord whose hordes had conquered half the galactic Quadrant -- the Invid Regent! Threatened with a swift and violent end, and suddenly torn by internal struggles for power, the RDF would find itself thrust into a savage war for survival!

Starshield Sentinels

Starshield Sentinels PDF

Author: Margaret Weis

Publisher: Del Rey

Published: 1996

Total Pages: 448

ISBN-13: 9780345397607

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Created by the bestselling team of Weis & Hickman, Starshield introduces their newest fantastic universe with an unforgettable, magical, grand adventure! Rebellion threatens to rock the very foundation of civilization. If the wrong side wins, the people will be at the mercy of minds with no conscience or humanity. The only hope for freedom lies with the Mantle of Kendis-dai, a relic reputed to hold the power of absolute Truth. But the Mantle of Kendis-dai is long lost in the mists of myth and time...if it ever really existed at all. Merinda Neskat, dedicated to the pursuit of Truth above all, is determined to find the legendary Mantle. The key to her quest is a group of lost Earthpeople, led by the feckless Jeremy Griffiths, who holds knowledge he shouldn't have--and doesn't understand. Together, Merinda, Jeremy, and his companions set off on a dangerous race against time and deadly enemy forces, seeking a mysterious world that holds the secret that can save them--or destroy the path of civilization forever.