Uranus and Neptune
Twenty-First Century Books, 1 de ago de 2003 - 80 páginas
Two of the most mysterious planets in our solar system are the cold, beautiful blue worlds of Uranus and Neptune. They lie so far from the Sun that they appear only as small dots in even the largest telescopes. Unknown to ancient astronomers, one was discovered by accident and the other as the result of an interplanetary detective story, and an intense international competition. Modern spacecraft have revealed them to be among the most fascinating of all the planets, from the frigid blue hurricanes that rage through Neptune’s atmosphere to some of the most unusual moons in the solar system.
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Página 10 - I have been led to the opinion and conviction that the surface of the moon is not smooth, uniform, and precisely spherical as a great number of philosophers believe it (and the other heavenly bodies) to be, but is uneven, rough, and full of cavities and prominences, being not unlike the face of the earth, relieved by chains of mountains and deep valleys.