a. ] http://www.therapeutichealinglight.com/pain Have you heard how space technology can help us here on earth by using light for pain, well this is no exception when we look at Red Light therapy. While the researchers in the field were fine-tuning their devices for pain relief, NASA needed a means to produce light without the added heat produced by incandescent light bulbs for space missions. Light for pain worked, and NASA took the next step. What people and animals felt through utilizing this technology in real life, NASA was proving to be true.