During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
Most dust particles in your house come from dead skin.
48
Each day, up to 150 species of life become extinct.
-23
Research indicates that plants grow healthier when they are stroked.
173
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17