Carina Nebula as captured by the Jamess Webb Space Telescope — NASA, ESA, CSA, and STScI

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Department of Astronomy and Cornell Center for Astrophysics and Planetary Science

Astronomy News

Large concrete dish surrounded by three poles and wires; a mechanism is suspended over the dish. the whole thing, a telescope, is surrounded by lush trees

Astronomer paints vivid history of Arecibo Observatory

In a new book, Donald Campbell, Ph.D. ’71, professor emeritus of astronomy, recounts the history of Arecibo from construction to its last days under Cornell’s management in 2011.

Three people stand next to a silver device, about a foot taller than the people, made of a post, a box with electronics inside, and a circular top

Cake-pan telescope searches the sky for fast radio bursts

The Global Radio Explorer telescope is a series of eight terminals being built and tested at Cornell and the California Institute of Technology, and installed at locations around the world.

Person holding up an orange menstrual cup

Spaceflight-tested menstrual cup offers choice on long missions

To equip astronauts with health choices for future missions, a Cornell postdoctoral fellow is leading research with AstroCup, a group that recently tested two menstrual cups in spaceflight as payload on an uncrewed rocket flight.

Nexus Scholar alumni profile: Ricco Venterea ’24

"Nexus Scholars was the first time where the only thing I had to worry about was research."

Artistic portrait of a person in argyle pattern sweater vest holds a small model of a molecule and looks pensive

Portraits honor 8 Cornell faculty as ‘new heroes’

The portraits are part of a series by Christopher Michel, the National Academies of Sciences, Engineering and Medicine’s inaugural artist-in-residence.

Illustration of a planet covered in orange-tinted clouds

How to spot life in the clouds on other worlds

Cornell researchers have created the first reflectance spectra – a color-coded key – of microorganisms that live in the clouds floating above Earth’s surface.

Golden sphere (a planet) against a black backdrop (space)

Now in 3D, maps begin to bring exoplanets into focus

Astronomers have generated the first three-dimensional map of a planet orbiting another star, revealing an atmosphere with distinct temperature zones – one so scorching that it breaks down water vapor, a team co-led by a Cornell expert reports in new research.

two black holes approach each other with a dark background of space

Cornell physicists update catalog of binary black holes

These simulations, developed with significant input from Cornell researchers using code written at Cornell, help scientists analyze gravitational waves observed by the LIGO, Virgo and KAGRA detectors located in the U.S., Italy and Japan.

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Together the Department of Astronomy and Cornell Center for Astrophysics and Planetary Science represent one of the world’s leading institutes for space science with over 110 active researchers. Research emphases include cosmology, solar system exploration, exoplanet science, and fundamental astrophysics. Graduate students, early career researchers and undergraduates, are actively engaged in current NASA missions, NSF consortia, and CCAT-Prime/FYST. The department and center also run an extensive and robust outreach program to the broader community.

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Department of Astronomy research

The Department of Astronomy is a leading center of astrophysics and planetary science research.

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Learn about the Carl Sagan Institute

A start stripping a planet's atmosphere. — This artist’s rendering shows a star stripping away a planet’s atmosphere. Image Credits: NASA/GSFC

Research spotlight

Universe Today reports "New research titled “Metal pollution in Sun-like stars from destruction of ultra-short-period planets” suggests that rocky planets are the source of these discrepancies. The authors are Christopher E. O’Connor and Dong Lai from Northwestern University and Cornell University, respectively." Read the full story here.

Learn more about astronomy research at Cornell.

Undergraduate program

The Astronomy Major at Cornell University is designed to be flexible so that it can be customized to the needs of each student.

Learn about the undergraduate program

Graduate program

Astronomy offers a wide variety of world-class research opportunities in astronomy, astrophysics and space science, with strong multidisciplinary connections, and a friendly and supportive atmosphere.

Explore the graduate program

Reaching beyond campus

In the spirit of the renowned Cornell Professor Carl Sagan, the Department of Astronomy reaches beyond campus in numerous ways. The Spacecraft Planetary Image Facility (SPIF) is a repository of spacecraft data, a facilitator of research, and a hub for PreK-12 education and public outreach activities. Ask an Astronomer has been answering questions from the curious since 1997. The Cornell Astronomical Society conducts viewing nights at the Fuertes Observatory and offers educational programing to the public.