Incredible facts about the Earth's place in the solar system.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.
Pluto is considered a pseudo-planet.
The (average orbital) speed of the Earth is 29.8 km/s or 107 thousand km/h. Oops.
This is 3963 miles
12 km over 6378 km for radius, that is about 0.2 %.
That is 4,500,000,000 years
Until the 17th century the theory of geocentrism dominated. Nicolas Copernicus was the first to propose, around 1513, a heliocentric model, where the sun is in the center.
It's a year.
If the Earth were an apple, this solid part would be the apple peel.