| Date | Speaker | Title | Time and direction | Remarks | 
|---|---|---|---|---|
| 2025-10-08 | Lei Zu (NAOJ) | Exploring Dark Matter Non-Gravitational Interactions through Cosmological Data Abstract | 15:30 - zoom DTA 1 / the large seminar room moderator: Dorozsmai | |
| 2025-10-15 | Sophia Stuber (NAOJ) | An unparalleled view of (dense) molecular gas in nearby main-sequence galaxies with PHANGS and SWAN Abstract | 15:30 - zoom DTA 1 / the large seminar room moderator: Harada | |
| 2025-10-22 | Jialu Li (University of Maryland) | Title: High-Spectral-Resolution Mid-IR Spectroscopy: Tracing Hot Gas in Massive Protostellar Disks Abstract | 15:30 - zoom DTA 1 / the large seminar room moderator: Cheng | |
| 2025-10-29 | 15:30 - zoom DTA 1 / the large seminar room moderator: | |||
| 2025-11-05 | Kohei Hayashi (Sendai College) | Dark Matter with Dwarf Galaxies: Challenges and Prospects at Small Mass Scales Abstract | 15:30 - zoom DTA 1 / the large seminar room moderator: Hamana | |
| 2025-11-12 | Chris Ashall (University of Hawaii, Manoa) | The Infrared Revolution: Supernovae with the James Webb Space Telescope Abstract | 15:30 - zoom DTA 1 / Graduate seminar room moderator: Moriya | |
| 2025-11-19 | Fumi Egusa (IoA, U Tokyo) | 15:30 - zoom DTA 1 / the large seminar room moderator: Harada | ||
| 2025-12-10 | Nanae Domoto (U. Tokyo) | 15:30 - zoom DTA 1 / the large seminar room moderator: Moriya | ||
| 2025-12-24 | Wenyue Dai (NAOJ) | 15:30 - zoom DTA 1 / Rinko room moderator: Guimarães | ||
| 2026-01-07 | Kazuyuki Akitsu (KEK) | 15:30 - zoom DTA 1 / the large seminar room moderator: Hamana | ||
| 2026-01-14 | Heifang Yang (Zhejiang University) | 15:30 - zoom DTA 1 / the large seminar room moderator: | ||
| 2025-01-21 | Masato Shirasaki (NAOJ) | 15:30 - zoom DTA 1 / the large seminar room moderator: | ||
| 2026-01-28 | Xavier Prochaska (UCSC) | 15:30 - zoom DTA 1 / the large seminar room moderator: | ||
| 2026-02-04 | Janet Ting-Wang Chen (National Central University, Taiwan) | 15:30 - zoom DTA 1 / the large seminar room moderator: Moriya | ||
| 2026-02-18 | 15:30 - zoom DTA 1 / the large seminar room moderator: | |||
| 2026-02-25 | 15:30 - zoom DTA 1 / the large seminar room moderator: | 
* This colloquium is conducted either online or in a hybrid format.