An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
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
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The largest breed of rabbit is the Flemish Giant.
65
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12
A cow produces around 200,000 glasses of milk in her lifetime.
373
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165