 postulated by Copernicus, though this is also not the case.</p>
    <h2>Earth has a powerful magnetic field.</h2>
    <p>This phenomenon is caused by the nickel-iron core of the planet, coupled with its rapid rotation. This field protects the Earth from the effects of solar wind.</p>
    <h2>There is only one natural satellite of the planet Earth.</h2>
    <p>As a percentage of the size of the body it orbits, the Moon is the largest satellite of any planet in our solar systm. In real terms, however, it is 