thumb|ESPRESSO spectrograph concept at the Preliminary Design Review thumb|ESPRESSO spectrograph optical design at the Preliminary Design Review thumb|ESPRESSO successfully made its first observations in November 2017.
thumb|ESPRESSO spectrograph concept at the Preliminary Design Review thumb|ESPRESSO spectrograph optical design at the Preliminary Design Review thumb|ESPRESSO successfully made its first observations in November 2017.
ESPRESSO (Echelle Spectrograph for Rocky Exoplanet- and Stable Spectroscopic Observations) is a third-generation, fiber fed, cross-dispersed, echelle spectrograph mounted on the European Southern Observatory's Very Large Telescope (VLT). The unit saw its first light with one VLT in December 2017 and first light with all four VLT units in February 2018.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).