Saying you as a human being have to physically be on the planet to measure the density of it is questioning the validity of the method we use to measure density of planets. We use accurate satellites and you deny their information as not accurate enough because a human being wasn't there. Do you see the logical fallacy in that? Do you realize we don't need physical human beings on the planet to do actual accurate science? Do you deny any of the info you learn from mars rovers because it wasn't gathered in person by a human being? Once again it's 2023 and that's not logical.