Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The average person in their lifetime will spend an estimated 20,160 minutes kissing!
212
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82