|  | Name of research project | Representative (affiliation) | 
| 1 | Square Kilometre Array Phase 1 | Akahori, Takuya (NAOJ/Mizusawa VLBI Observatory(SKA1 Subproject)) | 
| 2 | Advanced R&D hub for future GW detectors with TAMA300 | Aso, Yoichi (NAOJ/Gravitational Wave Science Project) | 
| 3 | Optical and Infrared Synergetic Telescopes for Education and Research (OISTER) | Ohta, Kouji (Kyoto University) | 
| 4 | Japanese VLBI Network (JVN) | Fujisawa, Kenta (Yamaguchi University) | 
| 5 | Promoting gravitational wave astronomy with the gravitational wave telescope, KAGRA | Tomaru, Takayuki (NAOJ/Gravitational Wave Science Project) | 
| 6 | Third generation gravitational wave telescope (3G) | Tomaru, Takayuki (NAOJ/Gravitational Wave Science Project) | 
| 7 | Ultra-Doppler: Ultra High Precision Radial Velocity Instrument for Nearby Solar Twins Search | Tamura, Motohide (Univ. Tokyo, NINS/Astrobiology Center, NAOJ/Subaru Telescope) | 
| 8 | Developing Far-Infrared Astronomy with PRIMA | Inami, Hanae (Hiroshima University)*Withdrawn on Jan 28, 2025 | 
| 9 | The next generation Very Large Array (ngVLA): planning towards a Japanese contribution | Izumi, Takuma (NAOJ/ngVLA Study Group・ALMA Project) | 
| 10 | Research Center for Dark Universe Cosmology | Kohri, Kazunori (NAOJ/Division of Science) | 
| 11 | Establishment of a base for international residential research workshops and schools for astronomy and astrophysics | Kohri, Kazunori (NAOJ/Division of Science) | 
| 12 | The LAPYUTA (Life-environmentology, Astronomy, and PlanetarY Ultraviolet Telescope Assembly) mission | Tsuchiya,Fuminori (Tohoku University) | 
| 13 | The Thirty Meter Telescope TMT | Usuda, Tomonori (NAOJ/TMT Project) | 
| 14 | Exploring the Chemodynamical Evolution of the Milky Way and the Local Group through Wide and Deep Stellar Surveys | Ishigaki, Miho (NAOJ/Subaru Telescope) | 
| 15 | Galaxy Formation Research Hub: Advancing Galaxy Formation Studies through Projects and Interdisciplinary Research | Ouchi, Masami (NAOJ/Division of Science) | 
| 16 | SILVIA: In-Orbit Demonstration of Ultra-Precision Formation Flying | Izumi, Kiwamu (JAXA/ISAS) | 
| 17 | Participation in the NASA Habitable Worlds Observatory | Sumi, Takahiro (Osaka University) | 
| 18 | Exoplanet Research Hub | Ikoma, Masahiro (NAOJ/Division of Science) | 
| 19 | Revealing the evolution from star and planet forming regions to planetary systems with radio and infrared observations x theory | Nomura, Hideko (NAOJ/Division of Science) | 
| 20 | Study of the formation of astronomical objects and structures using wide-area/wide-band observations with the Atacama Submillimeter Telescope Experiment (ASTE) | Kohno, Kotaro (The University of Tokyo) | 
| 21 | ALMA2: Atacama Large Millimeter/submillimeter Array in Exploration of the Origins of the Universe and Life | Fukagawa, Misato & Iguchi, Satoru (NAOJ/ALMA Project) | 
| 22 | From Subaru and beyond : Subaru 3 | Miyazaki, Satoshi (NAOJ/Subaru Telescope) | 
| 23 | Center for multi-messenger astronomy | Tominaga, Nozomu (NAOJ/Division of Science) | 
| 24 | Exploring the Universe by the Next-Generation Simulations | Kokubo, Eiichiro (NAOJ/Center for Computational Astrophysics) | 
| 25 | Elucidating formation and evolution of celestial bodies using far-infrared and terahertz interferometers | Matsuo, Hiroshi (NAOJ/Advanced Technology Center) | 
| 26 | JASMINE: Japan Astrometry/photometry Satellite Mission for INfrared Exploration | Kano, Ryohei (NAOJ/JASMINE Project) | 
| 27 | Building the group for the Wide-Field Science Initiative | Utsumi, Yousuke(NAOJ/NAOJ Chile), Furusawa, Hisanori (NAOJ/Astronomy Data Center)     *Revised Jan 31, 2025 | 
| 28 | Characterization of exoplanets by synergy with space and ground-based telescopes | Kotani, Takayuki (NINS/Astrobiology Center, NAOJ/Subaru Telescope) | 
| 29 | Astronomy with Ultra-Precise Spectroscopic Observations | Sato, Bunei (Institute of Science Tokyo) | 
| 30 | Study of the formation of astronomical objects and structures through the promotion of the LST/AtLAST project and multi-dimensional submillimeter survey observations | Kohno, Kotaro (The University of Tokyo) | 
| 31 | Exoplanet Imaging and Characterization with Subaru SCExAO and TMT-PSI | Guyon, Olivier (NAOJ/Subaru Telescope) | 
| 32 | Okayama Telescope Cluster: A Hub for Time-Domain Astronomy and Global Collaboration | Tajitsu, Akito (NAOJ/Subaru Telescope(Okayama Branch)) | 
| 33 | Nobeyama 45-m telescope: experimental field for next-generation technologies and astronomy with large-aperture millimeter-wave telescope | Nishimura, Atsushi (NAOJ/Nobeyama Radio Observatory) | 
| 34 | GREX-PLUS: Galaxy Reionization EXplorer and PLanetary Universe Spectrometer | Inoue, Akio (Waseda University) | 
| 35 | Lunar meter-wave telescope (TSUKUYOMI) | Iguchi, Satoru (NAOJ/ALMA Project, NAOJ/Advanced Technology Center(Lunar Observatory Study Team)) | 
| 36 | Antarctica 30-m Terahertz Telescope Project | Kuno, Nario (University of Tsukuba) | 
| 37 | Solar flare X-ray focusing imaging spectroscopy | Narukage, Noriyuki (NAOJ/Solar Science Observatory) | 
| 38 | The SOLAR-C Mission: a satellite mission for a high-throughput EUV Imaging Spectroscopy of the Sun | Shimizu, Toshifumi (JAXA/ISAS) | 
| 39 | Large Space Optical Infrared Telescope | Matsuda, Yuichi (NAOJ/ALMA Project) | 
| 40 | Continuous observations of solar activity: HINODE, Mitaka ground-based telescopes, and build-up for future observations | Katsukawa, Yukio (NAOJ/Solar Science Observatory) | 
| 41 | Radio astronomy with ultra-high angular resolution using EAVN and beyond | Honma, Mareki (NAOJ/Mizusawa VLBI Observatory) | 
| 42 | An extension of planetary geodesy side by side with Solar System small body explorations: MMX and Hayabusa2# | Matsumoto, Koji (NAOJ/RISE Project) | 
| 43 | Subaru HSC-MB + PFS Survey: Exploring large-scale structure at high redshifts | Miyatake, Hironao (Nagoya University) |