So you think you know your home planet? Well, think again while you read these 10 crazy facts about the Earth and see for yourself how well you know this rock floating in the space.
#1. The Poles Flip
You know that the North pole is above Alaska and the South Pole is in Antarctica. Well, geographically it is true but magnetically, these poles have flip-flopped every several hundred year or so in the last 20 million years.
#2. Almost spherical
It isn’t a perfect sphere and it is certainly not flat. It is shaped more like a spheroid where the poles are flattened and the equator has a bulge due to the planet’s rotation.
#3. A slowing rotation
This deceleration is a very slow process at 17 milliseconds per century. This effect causes a change in the length of our days. In fact, to have 25 hours per day would take 140 million years more.
#4. A powerful magnetic field
The Earth has a powerful magnetic field due to the nickel-iron core and its rapid rotation. It protects the planet from strong solar winds.