> Looking at the earth would blind it Wouldn't that depend on how much dynamic range it has? Webb is intended to look at very dim signals in space so Earth wo

> Looking at the earth would blind it Wouldn't that depend on how much dynamic range it has? Webb is intended to look at very dim signals in space so Earth would blind it, but if a spy-Webb were intended to track rocket or jet engines, things quite hotter than the rest of earth, perhaps it might be capable of that?