While our friends Jaguar and Ranger toil to model the Earth's atmosphere, star formation and battery chemistry, other supercomputers are working on classified national security problems. Namely: What happens when a nuclear weapon explodes? Are we sure our nuclear arsenal would actually work, should, God forbid, we decide to use it?
The Bulletin of Atomic Scientists may have found a new way to track secret nuclear tests from those rogue nations (cough cough North Korea cough cough) who are trying to keep those tests under wraps. Surprisingly enough, that new solution may be possible with analysis of regular old GPS data, along with some clever mathematics.