Background gravitational waves may provide us with unique information about the very early Universe.Artist's impression of the infrared astrometric satellite, Small-JASMINEOkayama Astrophysical Observatory 188-cm Reflector Telescope Moon, Five Planets, and Subaru TelescopeTMT in a ray of sunlight

It is possible to see entirely different universes when we look at our Universe in different wavelengths. The Universe observed in optical and infrared wavelength looks just as it does when you see it with your own eyes. Instead of eyes, we use large ground-based telescopes such as the Okayama 188-cm Telescope and the 8-m Subaru Telescope, which have thousands to millions of times greater visual power than eyes, in order to investigate the Universe to answer many unsolved questions. What structure does our Universe have? When was it born? How were planets and stars born? When and how did life appear in the Universe? We would like to answer these fundamental questions thorough our various scientific research. We are also working as liaison for different projects, the promotion of exploratory projects, public outreach, and education for graduate students.

March 6th, 2018 Update


February 14, 2018
"The Fifth Symposium on Historical Astronomical Records and Modern Science”to be held from March 22 - 24, 2018NEWDoticon_wht_Url.png
December 1, 2017
"WFIRST-Subaru Synegestic Observation Workshop”to be held from December 18 - 20, 2017Doticon_wht_Url.png
October 18, 2017
“Subaru Users’ Meeting FY2017” will be held!Doticon_wht_Url.png
April 7, 2017
Welcome and farewell lunch viewing cherry blossomDoticon_wht_Url.png
April 1, 2017
New slideshow in top page appear!
January 17, 2017
"Subaru International Partnership Science and Instrumentation Workshop” will be held.(Mar 22-24, 2017)Doticon_wht_Url.png
November 4, 2016
“Subaru Users’ Meeting FY2016” web site open!Doticon_wht_Url.png
November 2, 2016
New slideshow in top page appear!
October 7, 2016
“Subaru Users’ Meeting FY2016” will be held!(Jan 10-12, 2017)
September 12, 2016
"The 6th Subaru International Conference in Hiroshima” (Nov 28 - Dec 02, 2016)Doticon_wht_Url.png
July 4, 2016
"Okayama Users’ Meeting FY2016” will be held. September 7-8Doticon_wht_Url.png
May 16, 2016
“ULTIMATE-Subaru Science Workshop 2016” will be held. June 16-17.Doticon_wht_Url.png
April 6, 2016
Cherry Blossom Viewing “Ohana-mi” March 31Doticon_wht_Url.png
April 1, 2016
New slideshow in top page appear!
March 15, 2016
March 22 "Workshop on Galactic archaeology - Asteroseismology”Doticon_wht_Url.png
March 14, 2016
Update information about seminarDoticon_wht_Url.png
February 1, 2016
March 7-9 "From Stellar Evolution to Galaxy Formation” will be held!Doticon_wht_Url.png
December 22, 2015
Annual Division Meeting “DAI-Happyoukai"Doticon_wht_Url.png
November 9, 2015
“Subaru Users’ Meeting FY2015” will be held!Doticon_wht_Url.png
November 9, 2015
“Japanese TESS Science Workshop"Doticon_wht_Url.png
October 15, 2015
“Astronomy with Near-Infrared Hight Resolution Spectroscopy” will be held.Doticon_wht_Url.png
October 9, 2015
"MITAKA Open House Day 2015” will be held!Doticon_wht_Url.png
Pre-open day: October 23, Open day: October 24
July 1, 2015
New slideshow in top page appear!
April 22, 2015
Update information about seminarDoticon_wht_Url.png
April 16, 2015
Report from the Subaru Telescope for External Review (FY2009 - FY2013)Doticon_wht_Url.png
April 2, 2015
Cherry Blossom Viewing “Ohana-mi”Doticon_wht_Url.png
March 31, 2015
Update information about memberDoticon_wht_Url.png
March 17, 2015
Update information about seminarDoticon_wht_Url.png
March 12, 2015
The homepage has been redesigned


Gravitational Wave Project Office

Gravitational Wave Telescope will Reveal New Aspects of the Universe


JASMINE Project Office               

Drawing a Detailed Map of the Milky Way at Infrared Wavelenths Using an Astrometry Satellite


Okayama Astrophysical Observatory

Our 188-cm Telescope is the Symbol of Optical-Infrared Observation in Japan


Subaru Telescope

Subaru Telescope’s Suite of Optical and Infrared Instruments Continually Enriches Our Knowledge of the Universe


TMT-J Project Office

Constructing a 30m-Class Optical-Infrared Telescope for the 2020s