We've improved Slashdot's video section; now you can view our video interviews, product close-ups and site visits with all the usual Slashdot options to comment, share, etc. No more walled garden! It's a work in progress -- we hope you'll check it out (Learn more about the recent updates).
It is a very complex instrument. And a cosmic is not the first hypothesis in these case. It was very hard to find out the cause of the issue. And they could not risk switching to backup without knowing for sure it would not fail as the first one, and loose the instrument for good. It is not like you can go out there and repair it by trial and errors.