Evaluating solar cell performance through in-orbit demonstration TOKYO, Oct. 31, 2025 /PRNewswire/ -- Ricoh Company, Ltd. has announced that its perovskite solar cells have been installed on the Space Solar Cell Demonstration System (SDX) on the HTV-X1, the new uncrewed cargo transfer 'spacecraft1' developed by the Japan Aerospace Exploration Agency (JAXA), which was launched on October 26. After HTV-X1 delivers supplies to the International Space Station (ISS), JAXA will conduct an in-orbit demonstration. ...