First for DESI (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption The first "petal" machined for the Dark Energy Spectroscopic Instrument (DESI) is shown in these photos. Ten of these petals, which together will hold 5,000 robots (like the one in the lower right photo) -- each pointing a thin fiber-optic cable at separate sky objects -- will be installed in DESI. Credit Joe Silber/Berkeley Lab 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.