DESI Robots and Petals (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption This is an array of 10 wedge-shaped petals, each loaded with 500 robotic fiber-optic positioners, will be assembled in the Dark Energy Spectroscopic Instrument's focal plate. At right, a view of the robots fitted into holes in one of the petals. Credit (Credit: DESI Collaboration) 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.