About the Subaru Telescope
Prime Focus Spectrograph (PFS)
Subaru Telescope has been developing a wide-field multi-object spectrograph under international collaboration scheduled to start observations around 2020. Up to 2400 astronomical objects inside 1.3 degree field of view in diameter can be observed spectroscopically with optical to near-infrared wavelength range. Taking advantage of such wide-field and wide-wavelength coverage, we will reveal and solve mysteries of universe such as assembly history of our galaxy, nature of Dark Energy, and neutrino mass hierarchy.