Cows can sleep standing up, but they can only dream lying down.
745
Your thumb is about the same size as your nose.
124
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
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Your body is creating and killing about 2.4 million red blood cells per second.
17
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The oldest glowing lightbulb was first switched on in 1901 and lives in fire stations in Livermore, CA. It is known as the Centennial Light.
118