That's why researchers wanted to test whether portable X-ray machines could be used to take images in space clear enough for diagnostic purposes. Those images (along with some taken postflight by noncrew) were analyzed by independent radiologists, who found "no difference" in quality, contrast, or resolution between those taken in space and on the ground. Being able to take reliable X-rays during missions is a huge step forward. Typical X-ray machines are large, produce radiation, and have trouble producing clear images if there's movement, but these small ones are effective and require minimal training to operate. X-rays can also be used for imaging equipment, allowing the crew to identify internal issues without having to take machines apart, making these devices useful for medical and nonmedical purposes.