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
A ball of glass will bounce higher than a ball made of rubber.
73
Billions of neutrinos pass unnoticed through your body every second.
6
The earth is approx. 6,588,000,000,000,000,000 tons.
175
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Balsa wood is classified as a hard wood!
41