Incredible facts about the Earth's place in the solar system.
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.