To be fair, they wasn't expecting Hubble to last beyond the end of the service date. I recalled it was ~10~ 15 years? They have no way of knowing this beforehan

To be fair, they wasn't expecting Hubble to last beyond the end of the service date. I recalled it was ~10~ 15 years? They have no way of knowing this beforehand. Edit:saw the comment somewhere that it is 15 years.