How likely is it for NASA to miss some mid-sized piece of space debris, resulting in said space debris impacting the ISS? Just curious.
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We need a moon as soon as possible.So, sooner or later, there are going to be really serious occurrences which add so much to mission costings that they will become impracticable and space exploration will be costed out?
Or does this make transfer to Moon base essential at an early date?