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
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
Out of all the senses, smell is most closely linked to memory.
146
The average temperature at 40,000 feet above sea level is -60 F.
56
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
German chemists made a replica of a trophy the size of one molecule.
68
The smell of freshly cut grass is actually a plant distress call.
31