The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Nearly 50% of the world's scientists are assigned to military projects.
71
A single speck of dust is half way in size between a subatomic particle and the Earth.
15