Billions of neutrinos pass unnoticed through your body every second.
6
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
German chemists made a replica of a trophy the size of one molecule.
68
Iron weighs more after it rusts.
16
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
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Indoor pollution is 10 times more toxic than outdoor pollution.
62