An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Your body is creating and killing about 2.4 million red blood cells per second.
17
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
Your thumb is about the same size as your nose.
124
Cows can sleep standing up, but they can only dream lying down.
745