"What if?" questions stimulate people to think in new ways, to refresh old ideas, and to make new discoveries. What If the Earth Had Two Moons leads us on a fascinating ten-world journey exploring wh
One of the great paradoxes of modern times is that the more scientists understand the natural world, the more we discover that our everyday beliefs about it are wrong. Astronomy, in particular, is one
“What if?” questions have always stimulated people to think in new ways. What if the Earth Had Two Moons leads us on a fascinating 10 world journey exploring what the Earth would be like if conditions
Traveling into space and visiting or even emigrating to nearby worlds will soon become part of the human experience. Scientists, engineers, and investors are working hard to make space tourism a reali
In this engaging and accessible exploratory work, accomplished astrophysicist Neil F. Comins shows how ten hypothetical astronomical situations would affect our planet and life on it. What if the Moon
Freeman’s briefest, least expensive introductory astronomy text.Discovering the Essential Universe, Fifth Edition is one of the briefest texts available for the introductory astronomy course, while st
