Lectures

• Radio Astronomy (Yonsei Univ.) | Speical Lecture
• Fundamental Astronomy 1 (Kyungpook Natl. Univ.)
• Observational Astronomy and Practice 1 (Kyungpook Natl. Univ.)

Invited Talks

• A sharper view of supermassive black holes with the Event Horizon Telescope | Colloquium at Sogang Univ., Korea
• Seeing the black hole shadow with the Event Horizon Telescope | Colloquium at Sejong Univ., Korea
• Supermassive black hole at our Galactic Center, Sagittarius A*, with Very Long Baseline Interferometry observations | Colloquium at Kyung Hee Univ., Korea
• The Event Horizon Telescope results toward AGNs | The Black Hole Astrophysics with VLBI Workshop, Japan
• Imaging the black hole shadow from the Event Horizon Telescope observations | International Conference on Gravitation, Astrophysics, and Cosmology (ICGAC), Korea
• Unveiled properties of the supermassive black holes with the Event Horizon Telescope | IAU General Assembly, Korea
• EAVN observations toward Sgr A* | The Black Hole Astrophysics with VLBI Workshop, Virtual
• The black hole shadow imaging with the Event Horizon Telescope | Colloquium at Kyungpook National Univ., Korea