In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
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
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
Cows can sleep standing up, but they can only dream lying down.
745
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
You forget 90% of your dreams.
256