A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Scientists are now able to grow 'beating' heart tissue in a lab!
162
In zero gravity, a candle's flame is round and blue.
16
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
German chemists made a replica of a trophy the size of one molecule.
68
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6