Dark matter and life?

Question

I haven't really thought this through so I'm just throwing it out here, as I know someone very smart will have a good answer.
Is it possible that since 75 percent of the universe is dark matter and energy that there are dark planets in our solar system that contain intelligent life? Would you guess that if there were, they would be able to see our 'light matter' planet, or no?

Answer 1

Dark matter is simply matter that does not emit any radiation. So a dead star is dark matter, for example. But there is too dark matter to be explained this way. If neutinos have a mass, so dark matter is almost entirely made of neutrinos. If neutrinos have no mass, we still don't have an answer; anyway a "dark planet" has no sense: we could say that a planet near a dead star would become a dark planet, but this is irrelevant. Dark energy is still a mystery even in the case neutrinos have a mass.

Answer 2

Hi. Dark matter is just not understood, but not magical. It should reflect photons unless it's REALLY weird stuff.