Rare Look Inside a Planet Finder Spectrograph

Take a rare look inside a world-class planet finding instrument. In April, our team performed maintenance and upgrades to the Planet Finder Spectrograph, or PFS for short. PFS is an instrument that astronomers use at the Magellan Clay Telescope to find signatures of exoplanets in stellar spectra. The observations are critically dependant on precision, which relies on the stability of the instrument. The PFS team only opens the instrument every few years for maintenance and upgrades, making this an unusual event that we wanted to share.