Mars had an oxygen-rich atmosphere around 4 billion years ago
13
You forget 90% of your dreams.
256
Your thumb is about the same size as your nose.
124
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14