Because it is not a meteorite, it will not hit a planet. Because it is on its own track, there will be no forks. ... So... Just like the Earth and Mars, no matter how similar they are, they cannot bring them closer to each other. When I say: I miss you, you say: Oh. Move, this is our distance.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.