Galileo's in 1609
Presently, the ejected ring theory best describes the origin of moon.
Evolution does not concern the origin of the universe. Evolution is a theory concerning the origin of species--diverse biological organisms--via mechanisms of inheritance with modification. The origin of the universe is best dealt with by the Big Bang theory.
The most widely accepted theory for the origin of the Moon is the giant impact hypothesis, which suggests that the Moon was formed from debris ejected during a collision between Earth and a Mars-sized body early in the Solar System's history. This impact led to the formation of the Moon from the remnants of the collision between Earth and the impacting body.
either saturn or jupiter but your best bet is jupiter
I don't know of any planet with exactly 21 known moons. The best answer is probably "Uranus" with 27 moons (natural satellites).
force theory
Opponent-processing theory
opponent-process theory
repair and restoration theory
theory
theory
Presently, the ejected ring theory best describes the origin of moon.
Evolution does not concern the origin of the universe. Evolution is a theory concerning the origin of species--diverse biological organisms--via mechanisms of inheritance with modification. The origin of the universe is best dealt with by the Big Bang theory.
opponent-process theory
The most widely accepted theory for the origin of the Moon is the giant impact hypothesis, which suggests that the Moon was formed from debris ejected during a collision between Earth and a Mars-sized body early in the Solar System's history. This impact led to the formation of the Moon from the remnants of the collision between Earth and the impacting body.
The trichromatic theory best explains color vision in humans. This theory suggests that there are three types of cones in the retina that are sensitive to different wavelengths of light, allowing us to perceive a wide range of colors.
World Systems Theory.