Space Systems

In the early seventeenth century, Galileo Galilei posited that tides were a consequence of Earth's motion. Today we've achieved an accurate understanding of the ways that orbiting objects interact to create visible-and sometimes tangible-effects on Earth. Earth, Sun, and Moon: Cyclic Patterns of Lunar Phases, Eclipses, and the Seasons explains the cycles that affect our daily lives and how the major figures in astronomy used the scientific method to prove their theories about these cycles in accordance with Next Generation Science Standards.

Our modern understanding of the heliocentric universe developed five hundred years ago. Since the time of Copernicus and Galileo, scientists have made major strides in understanding how gravity, stars, and planets interact. Gravity, Orbiting Objects, and Planetary Motion explains how early ideas have given way to sophisticated, proven theories about the universe. The book aligns with Next Generation Science Standards and also presents a look at what is next in the cutting-edge field of astronomy.