Since 2005, scientists have been scanning the night sky to create a three-dimensional map of our universe with the purpose of shedding light on one of the biggest mysteries in physics: the nature and identity of dark energy and dark matter. That effort is about to get a massive upgrade with the successful installation and testing of the Dark Energy Spectroscopic Instrument, or DESI.
Source:
https://phys.org/news/2020-07-eyes-scientists-choreograph-robots-distant.html