Heavy-duty ceramics (IMAGE) Ural Federal University Caption The new heavy-duty ceramics can be used in space conditions, for example, for the portholes of space stations Credit UrFU / Vladimir Petrov Usage Restrictions Photo may be freely used to illustrate this topic, but please credit the author of the image: UrFU / Vladimir Petrov 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.