Amazingfacts

Ocean waters do hold gold – nearly 20 million tons of it. However, if you were hoping make your fortune mining the sea, consider this: Gold in the ocean is so dilute that its concentration is on the order of parts per trillion. Each liter of seawater contains, on average, about 13 billionths of a gram of gold.

There are nearly 38,000 of man made objects orbiting the earth since the launch of sputnik in 1957, such as parts of old space rockets sent up by Russia, China, Europe and the USA etc, lots of military and civilian satellites used for communication, navigation, research and reconnaissance, space probes sent to explore planets like Mars, the Hubble Space Telescope used to look deep into space and the International Space Station.