Although the ground feels solid and immovable, in reality, all life
on Earth is on the outside of an 8,000-mile-diameter ""spaceship""
that is twirling on its axis, speeding around the Sun, and sweeping
around the galaxy. ""Earth's Journey Through Space"" explains how
astronomers can tell that Earth is going through such gyrations and
what dramatic effects those motions have on the planet. Highly
visual and informative, this fresh new book also recounts how
astronomers - beginning with the ancient Greeks - first discovered
Earth's movements, and how new high-tech telescopes are now
revealing much more about our place in the universe.
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