CARMENES survey
The CARMENES survey is a project to examine approximately 300 M-dwarf stars for signs of exoplanets with the CARMENES instrument on the Spanish Calar Alto's 3.5m telescope.
Operating since 2016, it aims to find Earth-sized exoplanets around 2 using Doppler spectroscopy. More than 20 exoplanets have been found through CARMENES, among them Teegarden b, considered one of the most potentially habitable exoplanets. Another potentially habitable planet found is Gliese 357 d.