Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
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
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
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.
13