PROBA-3 Mission (IMAGE) Spanish Foundation for Science and Technology Caption For the very first time, two spacecraft will fly in formation with sub-millimetre precision. Credit ESA - P. Carril Usage Restrictions None License Licensed 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.