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Author
Language
English
Description
The brilliant German mathematician Johannes Kepler (1571-1630), one of the founders of modern astronomy, revolutionized the Copernican heliocentric theory of the universe with his three laws of motion: that the planets move not in circular but elliptical orbits, that their speed is greatest when nearest the sun, and that the sun and planets form an integrated system. This volume contains two of his most important works: The Epitome of Copernican Astronomy...
2) What if the Earth Had Two Moons?: And Nine Other Thought-Provoking Speculations on the Solar System
Author
Language
English
Description
"What if?" questions stimulate people to think in new ways, to refresh old ideas, and to make new discoveries. In What If the Earth Had Two Moons, Neil Comins leads us on a fascinating ten-world journey as we explore what our planet would be like under alternative astronomical conditions. In each case, the Earth would be different, often in surprising ways.
The title chapter, for example, gives us a second moon orbiting closer to Earth than the...
3) UFO's
Author
Series
Accelerated Reader
IL: MG - BL: 6 - AR Pts: 1
Language
English
Description
From the first time a person looked up at the sky and wondered "What's our there?" humans have dreamed about exploring the cosmos.
Over the years, there have been hundreds of reports of UFO (or unidentified flying object) sightings-which the U.S. government seemed to ignore. But, a recently released Pentagon report tells a different story. For five years, a secret government agency was tracking and investigating these sightings. Now, in the pages...
4) Mars Rovers
Author
Series
Accelerated Reader
IL: MG - BL: 6 - AR Pts: 1
Language
English
Description
From the first time, a person looked up at the sky and wondered "What's out there?" humans have dreamed about exploring the cosmos.
This book is part of a series, A True Book: Space Exploration, that includes the titles Human Missions to Outer Space, Mars Rovers, The International Space Station, and UFO's. The series features the latest NASA imagery and lively text to bring the wonder of space exploration directly to readers.
For so long, our neighbor...
Author
Series
Language
English
Description
From the first time, a person looked up at the sky and wondered "What's out there?" humans have, dreamed about exploring the cosmos.
This book is part of a series, A True Book: Space Exploration, that includes, the titles, ‘Human Missions to Outer Space’, ‘Mars Rovers’, ‘The International Space Station’, and ‘UFO's’. The series features the latest NASA imagery and lively, text to bring the wonder of space exploration directly to readers.
In...
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