5000 «yeux» pour suivre l'univers en expansion

https://www.tdg.ch/savoirs/sciences/5000-yeux-suivre-univers-expansion/story/20773037
DESI, the Dark Energy Spectroscopic Instrument, will mobilize 5,000 swiveling robots – each one pointing a thin strand of fiber-optic cable – to gather the light from about 35 million galaxies. The little robots are designed to fix on a series of preselected sky objects that are as distant as 12 billion