A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
14
Your body is creating and killing about 2.4 million red blood cells per second.
17
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Your thumb is about the same size as your nose.
124
Cows can sleep standing up, but they can only dream lying down.
745
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14