For this reason black holes are invisible to the eye, as lightless as the empty, dark space surrounding them. Scientists know they exist not because they can see an actual hole, b ...

Ohio celebrated its 222nd birthday March 1, so let's party with these odd facts about the Buckeye State you probably didn't ...

You shed about 1.5 pounds of skin every year, contributing to household dust. Over 700 species of bacteria live in your mouth ...

Bananas contain potassium-40, a radioactive isotope. The levels are harmless and naturally excreted by the body. The ...