A cow produces around 200,000 glasses of milk in her lifetime.
373
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The oldest glowing lightbulb was first switched on in 1901 and lives in fire stations in Livermore, CA. It is known as the Centennial Light.
118
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
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
The strangers in your dreams are actually people that you've seen in real life.
50