The first X-ray laser isn't going away -- if anything, it'll be more useful than ever. The combination of the two beams will cover a wider energy range and help scientists study extremely small and extremely fast processes that either couldn't be recorded before or would take ages to examine in full. That, in turn, should lead to discoveries that advance electronics, energy and medicine. The big challenge is simply waiting for the upgrade, since it won't be ready until sometime in the early 2020s.