The chemical and isotopic composition of the sun is the starting composition from which all planets formed.

I consider nature a vast chemical laboratory in which all kinds of composition and decompositions are formed.

Planets move in ellipses with the Sun at one focus.

It turns out that the latter is the case. The chemical composition appears to be very ordinary.

This companion is probably too massive to have formed the way we believe that planets do, namely from a circumstellar disk of gas and dust when the star was young. This finding suggests that a diversity of processes act to populate the outer regions of other systems.

Astronomy teaches the correct use of the sun and the planets.