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
One barrel of petroleum holds 42 gallons.
20
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
Dr.Jonas Salk, the man who came up with the cure for polio, didn’t patent the drug. This made the drug more affordable to the general public, and he lost out an an estimated $7 billion dollars for himself.
41
Iron weighs more after it rusts.
16
The smell of freshly cut grass is actually a plant distress call.
31
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Each day, up to 150 species of life become extinct.
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