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The College of Arts Sciences

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Yervant Terzian

Professor Emeritus

Space Sciences Building, Room 512
Space Science Bldg



Yervant Terzian is “The Tisch Distinguished University Professor” in the Department of Astronomy at Cornell University. He was Department Chairman from 1979-1999. His fields of expertise are the physics of the Interstellar Medium, Galaxies, and Radio Astronomy. He is a member of the International Astronomical Union, the International Union of Radio Science, the American Astronomical Society, the Armenian Astronomical Society and the Hellenic Astronomical Society, among other memberships. He has been a Scientific Editor of The Astrophysical Journal (1989-1999). In 1984, he received the Clark Distinguished Award for Excellence in Teaching. In 1996, he was appointed Director of NASA’s New York Space Grant Consortium to enhance science education. He has been awarded Honorary Doctor of Science degrees from the University of Indiana (1989), the Yerevan State University in Armenia (1994), the University of Thessaloniki in Greece (1997), and from Union College in New York (1999). In 1990, he was elected Foreign Member of the Armenian Academy of Sciences. In 2001 he was elected a Fellow of the American Association for the Advancement of Science. In 2002 he was elected Chairman of the US Consortium of Universities and Institutes to construct the Square Kilometer Array giant radio telescope. In 2004 he received the Distinguished Alumni Award from the American University in Cairo. He is the Chairman of the Research Council of the Armenian National Science and Education Fund. In 2008 he received the Gold Medal, the ‘highest honor for scientific achievement,’ from the Government of the Republic of Armenia. In 1999 Cornell University established an endowment for “The Yervant Terzian Undergraduate Scholarships” and in 2009 established an endowment for “The Yervant Terzian Annual Lectureship in Astronomy.” He is the author or co-author of more than 235 scientific publications and the editor of seven books, including “Carl Sagan’s Universe.”


  • Astronomy


  • Cornell Center for Astrophysics and Planetary Science


Radio and Radar Astronomy.  HI in Binary galaxies., Interstellar Clouds and Planetary Nebulae., Late Stellar Evolution and OH/IR Stars., Technology Development for the Square Kilometer Array., US Square Kilometer Array Consortium, National Space Grant College and Fellowship Program - NASA/NY Space Grant Consortium, REU Support for Undergraduate Research in Observational Astronomy


-Panagia, N., and Y. Terzian. "Ultraviolet Radiation from White Dwarfs and the Carbon Ionization in the Galactic Halo." Ap. J. 287, 315 (1984).

-Schneider, S., E. E. Salpeter, and Y. Terzian. "High- Resolution Observations of the Intergalactic HI Cloud in the M96 Group." Astron. J. 91, 13 (1986).

-Nordgren, T., J. Cordes, and Y. Terzian. "The Scale Height of the Galactic Free Electron Cloud." Astron. J. 104, 1465 (1992).

-Hajian, A., Y. Terzian, and C. Bignell. "Planetary Nebulae Expansion Distances" Astron. J. 106, 1965 (1993).

-Chengalur, J., E. E. Salpeter, and Y. Terzian. "Dynamics of Binary Galaxies II: Close Pairs." Astron. J. 107, 1984 (1994).