One barrel of petroleum holds 42 gallons.
20
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
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
The sun is 330,330 times larger than the earth.
75
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
4.5 pounds of sunlight strike the Earth each day.
27
Iron weighs more after it rusts.
68