Optical setup (IMAGE) Optica Caption Researchers developed a way to use radio-holography to characterize a fully integrated cryogenic telescope instrument prior to deployment. To place the telescope optics in the tester, the optics tube enters the cryostat from below where it is secured in place. Then, the entire cryostat is flipped so that the window points upward. Credit Grace Chesmore, University of Chicago Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.