Mars had an oxygen-rich atmosphere around 4 billion years ago
13
No one knows Albert Einstein's last words. Just before he passed, he spoke several words in German, but his nurse only knew English.
154
Your body is creating and killing about 2.4 million red blood cells per second.
17
If you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
31
In Georgia, there is an airtight room called the Crypt of Civilization that was sealed in 1940. It contains numerous artefacts documenting what life was like at the time of sealing, and is scheduled to be opened in the year 8113 to show people of the future exactly what life was like.
13
Your thumb is about the same size as your nose.
124
The strangers in your dreams are actually people that you've seen in real life.
50