What characteristics do the Sun Moon and Earth share?

Answer 1

Although they appear to be different at first glance, and in many ways the Sun, Moon and Earth have significant differences, they all obey some basic laws of physics:

Gravity

All matter in the universe exerts a pull of force on local space. The more mass an object has, the more gravity it exerts. All three objects exert some gravitational force; however, as the Sun has the most matter, it has the most gravitational pull out of the three; and as the moon has the least amount of mass, it has the lowest gravitational pull.

Magnetic Fields

Magnetic fields of the Sun, Earth and Moon are generated, as is currently understood, by the core of each object. The magnetic fields extend out of the object, and surround the body. Due to the differing compositions of each object, however, the magnetic fields are not only stronger in the larger objects, but even have different types and locations of magnetic poles.

Development Cycle

As it's understood by cosmologists, when a large amount of nebulous gasses are pulled together by their combined forces of gravity, the pressure eventually ignites the gasses, creating a star. When the star eventually explodes, the resulting cloud of dust and matter coalesce into orbiting bodies, while a new star is created in the process to heat the planets and their moons. This cycle is said to bind our Sun, Earth and Moon together over the course of billions of years.