In zero gravity, a candle's flame is round and blue.
16
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
According to studies, men change their minds two to three times more often than women.
72
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
Scientists aren't sure what color dinosaurs were.
312
Pumice is the only rock that floats on water.
14
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11