Going into space is a real pain in the back. While the astronauts may gain up to 2 inches in height temporarily during space voyages, the effect is also accompanied by the weakening of muscles supporting the spine. Astronauts in space have also been reporting back pain since the late 1980's, when missions up in space grew longer. Their flight medical data show that more than half of US astronauts have reported back pain, especially in their lower backs. I have designed a back brace to relieve the astronauts from back pain. If the rigid brace is well fitted, it is able to limit approximately 50% of the motion in the spine.