There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
Iron weighs more after it rusts.
68
Your brain is 80% water.
525
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5