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Department of Astronomy

The Astronomy Department at the California Institute of Technology is part of the Division of Physics, Math, and Astronomy. The primary mission of our department is twofold: the performance of cutting-edge research in astronomy and astrophysics, including theory, observation, and experiment, as well as the education of undergraduate and graduate students and training of postdoctoral research associates who will comprise the scientists and leaders of tomorrow. We are located in the Cahill Center for Astronomy and Astrophysics on the Caltech campus.

OVRO 40-meter radio telescope
Research Highlights
ZTF: Zwicky Transient Facility at Palomar   ＞ COMAP: the CO Mapping Array Pathfinder at OVRO   ＞ SPHEREx Mission   ＞
Keck Observatory telescope domes
Observatories
OVRO   ＞ Palomar Observatory   ＞ W. M. Keck Observatory   ＞ LIGO   ＞
Upcoming Events
All Events   ＞
May 31, 2023 12:15 pm

IPAC Astronomy Seminar

Online Event
Dark Matter and Dark Energy from Weak Gravitational Lensing
Mike Hudson, Department of Physics and Astronomy, University of Waterloo,
May 31, 2023 4:00 pm

ASTRONOMY COLLOQUIUM

Cahill, Hameetman Auditorium
Early Phases of Galaxy/Supermassive Black Hole Formation and Cosmic Reionization
Masami Ouchi, Professor, Institute for Cosmic Ray Research, University of Tokyo,
June 12, 2023 7:30 pm

Special 100th Astronomy on Tap

"Planet Nine" and "Bringing Mars to Earth"
Mike Brown, Richard and Barbara Rosenberg Professor of Planetary Astronomy, Caltech,
Laurie Leshin, Director, NASA Jet Propulsion Laboratory,
June 23, 2023 2:00 pm

Special TAPIR Seminar

Online and In-Person Event
Title to be announced
Eliot Finch, Graduate Student, Institute for Gravitational Wave Astronomy, University of Birmingham,
August 4, 2023 2:00 pm

Special TAPIR Seminar

Online and In-Person Event
Title to be announced
Lucy McNeill, JSPS Fellow, Department of Physics, Kyoto University,
August 25, 2023 2:00 pm

Special TAPIR Seminar

Online and In-Person Event
Title to be announced
Pavan Vynatheya, Graduate Student, Stellar Department, Max Planck Institut für Astrophysik (MPA), Garching,

Recent Publications

For a complete publications list, see feeds.library.caltech.edu