A New Era for Astronomy at UVA
The University of Virginia’s Department of Astronomy has long punched above its weight. Once a cornerstone of Thomas Jefferson’s vision for a model public-university education, the department today — backed by major new investments from the College and Graduate School of Arts & Sciences and energized by ambitious, cross-disciplinary initiatives — is entering what Chair and Vanderbilt Professor of Astronomy Steven Majewski calls a defining era.
In December, the dean’s office committed roughly $7 million in new support to the department, building on earlier investments and bringing total recent commitments to about $11 million over five years. The goal, Majewski said, is clear: “Building capacity and momentum for the next decade for this department.”
That momentum is already visible in the size of its postdoctoral community, the scope of its access to some of the world’s most important telescopes and its leadership in national efforts to harness the power of artificial intelligence to propel the science of astronomy into warp drive.
The Power of the Postdoc
One of the most dramatic changes for the department has been the growth of its postdoctoral fellows across initiatives such as GECO (Galaxy Evolution and Cosmology), VICO (Virginia Initiative on Cosmic Origins) and VITA (Virginia Institute for Theoretical Astrophysics).
“Prize postdoc fellows are like the intellectual engines of a department,” Majewski said. “If you want to look at where a field is going, you look at what the postdocs are doing.”
Just a few years ago, the department hosted five to 10 postdocs. This fall, the department is looking to more than 25 — a transformation that is reshaping the intellectual climate of the department.
“It makes the department so invigorating because it's become such a constant hive of activity,” Majewski said. "Mini-conferences, proposal workshops and new telescope observing collaborations are generating new ideas, and these are creating a self-sustaining cycle whereby the fellows win allocations of time on major facilities, such as the James Webb Space Telescope, and this brings accompanying research funds that flow back to UVA helping the program to grow."
The college has also invested $1.5 million to expand access to ground-based observatories, including the Large Binocular Telescope in Arizona and facilities in Chile and New Mexico. In an era of massive sky surveys and time-sensitive discoveries, telescope access is critical.
“You can’t explore the universe without access to big eyes on the sky,” Majewski said.
CosmicAI and the Future of Discovery
If you think of telescope time as oxygen to a leading astronomy program, artificial intelligence is becoming its nervous system.
UVA is a co-leader in the NSF–Simons AI Institute for Cosmic Origins, known as CosmicAI, one of only two NSF-backed efforts nationwide focused on AI in astronomy. The institute brings together astronomers, statisticians, data scientists and engineers to tackle problems that no single discipline can solve on its own.
Associate professor Paul Torrey, co-primary investigator for CosmicAI, was recruited to join UVA's faculty two years ago owing to UVA's long-standing commitment to theory through VITA. “VITA is one of the reasons why I came here,” he said, citing the college’s sustained support for theoretical astrophysics.
CosmicAI builds on that foundation. Torrey describes its core challenge bluntly: “Interdisciplinary work is hard.” Astronomers, statisticians and computer scientists “speak different languages,” and building real collaboration “does not happen overnight.”
But the payoff is profound. With AI tools capable of parsing mountains of data from next-generation observatories and to accelerate simulations to explain what they see in the cosmos, UVA researchers are developing new statistical frameworks and algorithms that promise to accelerate discovery in areas from star and galaxy formation to dark matter.
For graduate students, that shift is transformative. “We are going to be producing graduate students who have more interdisciplinary skills than has previously been common,” Torrey said. What’s more, those students leave not only as astronomers but as scientists fluent in data science and statistics.
A New Ecosystem: The Interconnected Cosmos Initiative
The department’s growth isn’t just about AI. Under the leadership of Associate Professor Ilse Cleeves, the new Interconnected Cosmos Initiative is building an ecosystem that links astronomy, chemistry, physics, environmental sciences, engineering and data science to confront some of the most enduring questions in science: How does matter evolve from atoms to planets? What is dark matter? How do stars die?
“The universe doesn’t respect disciplinary boundaries,” Cleeves said. The initiative, she added, is designed to “bring those different departments and groups together across Grounds and build an ecosystem for that interdisciplinary interaction.”
Supported by $2.5 million over three years as one of Arts & Sciences’ Areas of Excellence, the initiative creates opportunities for transformative research, next-generation training and durable interdisciplinary collaboration. In addition to supporting faculty to take the leap to build new collaborations, ICI also supports undergraduates, graduate students and postdoctoral researchers co-mentored across departments. It also integrates laboratory astrophysics with large-scale simulations and leverages UVA’s connection to the National Radio Astronomy Observatory, which is headquartered on Grounds.
That relationship gives UVA researchers ready access to leading facilities operated by the observatory, including the Atacama Large Millimeter/submillimeter Array in Chile and the Karl G. Jansky Very Large Array in New Mexico. Access to those world-class instruments provides students and faculty with research opportunities available at only a handful of universities and positions the department as a leader in some of the biggest challenges in the field today: developing innovative new instrumentation, harnessing the power of AI and big data and the search for the chemical origins of life in the universe.
Putting Students at the Center
For students, the department’s expansion means immersion in a research environment that feels more like a national laboratory than a traditional academic unit.
Doctoral candidate Alex Garcia followed Torrey from Florida to UVA. “The reason I’m at UVA is because Paul’s at UVA,” he said with a laugh. But he stayed for the culture. “Everyone here is very friendly, and it’s very scientifically rich.”
Through Cosmic AI, Garcia has expanded his work into particle-physics approaches to dark matter detection, collaborating across institutions and disciplines. This spring, he will defend his dissertation before heading to a postdoctoral position at Harvard.
His trajectory reflects what Majewski hears from many students. “They see what’s going on here. They want to be a part of it,” he said. One recent graduate student told him, “I am so glad I came to UVA.”
Undergraduates, too, benefit from the department’s scale and intensity, joining research groups, participating in seminars and even publishing papers in leading scientific journals — a level of participation in research that was unheard of just a generation ago.
Investing in Excellence
Christa Acampora, Buckner W. Clay Professor of Philosophy and dean of Arts & Sciences, has made research excellence, retention and recruitment of exceptional scholars, and interdisciplinary collaboration central to her priorities for the school. The astronomy department’s growth, she said, exemplifies that vision.
“Our investment in astronomy reflects a broader commitment to cultivating areas of excellence that cross traditional boundaries,” Acampora said. “By bringing together theory, observation, laboratory science and artificial intelligence, this department is advancing discovery while preparing students to lead in an increasingly interdisciplinary world.”
Majewski sees the impact already — in faculty recruiting, in national partnerships and in the surge of interest from prospective postdocs. “This is the place people want to come now,” he said.
And while it’s impossible to know what new discoveries these changes will bring, it’s clear that some of the universe’s biggest mysteries are a little closer to being solved.
“Our people will play a part in those discoveries,” Majewski said.
