An anonymous reader writes "The BBC has an article about scientists at NASA who believe that they have found a new test that can detect osteoporosis earlier than existing tests. Their test involved having healthy volunteers confined to bed rest for 30 days; 'the technique was able to detect bone loss after as little as one week of bed rest.' Bone loss is an issue for astronauts as well as people affected by osteoporosis. They expect this test will help detect bone loss as a symptom of osteoporosis, but have not yet done a trial to confirm this. This is another point against anyone who claims NASA, and going to space in general, is a complete waste of money."