An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Only about 2% of the world population has green eyes.
36
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
Your body is creating and killing about 2.4 million red blood cells per second.
17