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 light hitting the earth right now is 30 thousand years old.
163
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 density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
More than 20 million meteoroids enter Earth's atmosphere every day.
139
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
