I have been looking for an answer for so long. Everywhere I look I find answers to the question how two lunar sized moons would affect the earths tides and so on. But I want to know, if we had our own moon, with its normal orbit, and an additional smaller moon, (or just further away from earth.) Would the impact have to be significant? Are there any circumstances in which there are no serious differences? My second question is, what would that smaller moon have to be made of or contain to look red and reflect the sun in a reddish light? Hopefully people will understand my English, it's not my first language.