An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
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In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Lurch, a Watusi bull, had the largest horns in the world.
32
Your thumb is about the same size as your nose.
124
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
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
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
Mars had an oxygen-rich atmosphere around 4 billion years ago
13