The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
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Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
Pluto is smaller than Russia.
9
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
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The population of the Earth has more than doubled since 1950.
151
There's a mysterious dwarf planet between Mars and Jupiter called 'Ceres' which has never been visited by spacecraft or photographed in detail, however, Earth-bound telescopes reveal a large bright shining spot on the surface of this planet, the origin and nature of which are unknown.
5
Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
4