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Korea Astronomy and Space Science Institute (KASI) is a partner institute of the Giant Magellan Telescope (GMT) consortium, together with institutes in USA, Australia, and Brazil, to construct an extremely large telescope, and Korean Giant Magellan Telescope (K-GMT) is a Korean project to take part in the construction of GMT, development of state-of-art instruments, and preparation of GMT sciences.


The Korean VLBI Network (KVN) is a very long baseline interferometry (VLBI) network in Korea operating at millimeter wavelengths. It consists of three 21-m radio telescopes located in Seoul, in Ulsan, and on the Jeju Island, Korea: KVN Yonsei Radio Observatory (KY), KVN Ulsan Radio Observatory (KU), and KVN Tamna Radio Observatory (KT).


The Atacama Large Millimeter Array (ALMA) is a partnership among East Asia, Europe, and North America in cooperation with the Republic of Chile. ALMA construction and operation are led on behalf of Europe by the European Organization for Astronomical Research in the Southern Hemisphere (ESO).


KASI has developed its first satellite laser ranging (SLR) system, ARGO-M, which is now in normal operation at KASI headquarters, and received the station code DAEK from the International Laser Ranging Service in 2012. Thus, Korea now joins 25 countries that operate SLR systems in support of the international laser tracking network.


KASI is building a network of wide-field photometric survey systems called the Korea Microlensing Telescope Network (KMTNet) in the southern hemisphere (Chile, South Africa, and Australia). This network is funded by the government of Korea.


Space weather is the condition in space that affects Earth and its technological systems. Our space weather is a consequence of the behavior of the Sun, the nature of Earth's magnetic field, and our location in the solar system.


Journal Paper

Development of Receiver Optics for ASTE Band 7+8 Receiver

IEEE Transactions on Terahertz Science and Technology



  • Optical Astronomy

    Optical Astronomy Division is a research division that includes the first research facilities from the establishment of KASI. This division consists of 4 research groups which are closely related with...

  • Radio Astronomy

    Since the establishment of 13.7m telescope in Taeduk Radio Astronomy Observatory (TRAO), Radio Astronomy is one of the active research fields in KASI and of Korea Astronomical Society. Its research ac...

  • Space Science

    The Space Science Division conducts Sun and Space Weather research and Lunar and Planetary Science. Further, it conducts high-resolution tracking of space objects based on Laser Ranging Technology to ...

  • Theoretical Astronomy

    In Center for Theoretical Astronomy, there are three research groups ; Cosmology Group, Historical Astronomy Group, and Theoretical Astronomy Group.

  • Center for Space Situational Awareness

    The Center for Space Situational Awareness (CSSA) performs risk analysis and field technical operations regarding collisions and re-entries of artificial satellites, and near-approaches and collisions...


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