Question

what is illustrated below? the formation of a galaxy the big bang theory the solar nebula theory a star life cycle

Explanation:

The image shows the process of a rotating cloud of gas and dust (nebula) collapsing and forming a central star - the Sun, along with orbiting planets. This is consistent with the Solar Nebula Theory which describes the formation of the solar system from a nebular cloud. It is not the formation of a galaxy (which is a much larger - scale structure), not the Big Bang Theory (which describes the origin of the universe), and not a star life - cycle (which shows the stages a star goes through from birth to death).

Answer:

The Solar Nebula Theory