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
Balsa wood is classified as a hard wood!
41
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Scientists aren't sure what color dinosaurs were.
312
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