The strangers in your dreams are actually people that you've seen in real life.
50
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
Your body is creating and killing about 2.4 million red blood cells per second.
17
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12