Infared = used by police
gamma = short wavelength
radio = largest wavelength
visible = only ones we can see
The answer is no moons<span> at all. That's right, </span>Venus<span> (and the planet Mercury) are the only two planets that don't </span>have<span>a single natural </span>moon<span> orbiting them. Figuring out why is one question keeping astronomers busy as they study the Solar System.</span>
The solution is 22 2(n+3)-4&6