So earth is at war with mars. Earth sends a trojan rocket ahead of time and declares war when its too late for mars, but wait the trojan is headed for phobos and so mars rig up stuff and when it breaks up (and harmlessly lands in unpopulated land) some of the pieces get sent back to earth but they need to remain undetected until its too late for earth to stop them and bunch of people die earth surrenders book over. but how can i make it so that the attack remains unnoticed until say 2-3 weeks from it hitting earth. Here is some important info:
- assume 2100s level tech, bit more advanced than now but not too crazy
- lets say 10% of phobos is whats heading to earth give or take
- earth cannot have enough time to stop it whether it be 2 months or a day but id like it to be in the 2-3 wk range so earth has time to panic
so how could i realistically have it remain undetected? no magic and minimal hand waving.