Guillermo Blanc named Director of Las Campanas Observatory

Galactic ecosystems expert Guillermo Blanc named Director of Carnegie Science's Las Campanas Observatory in Chile.
Guillermo Blancs presenting information about light pollution to the Chilean government. Preserving dark skies in Chile has been a key component of Blanc's work for many years.
Guillermo Blanc

Pasadena, CA—Astronomer Guillermo Blanc has been named the Director of Carnegie Sciences Las Campanas Observatory (LCO) in Chiles high Atacama Desert, home of the world-class twin Magellan telescopes and future site of the Giant Magellan Telescope. He succeeds Emeritus Director Leopoldo Infante, who retired at the end of 2025.

Blanc, who has served in an interim capacity since the beginning of the year, first joined Carnegie in 2011 as a postdoctoral fellow and has held a variety of positions over the ensuing years, including Head of Scientific Technical Development and Associate Director of Strategic Initiatives.

He has pursued an extensive research career, characterized by a combination of scientific leadership, innovation, and the development of influential observational programs in galactic and extragalactic astrophysics, while developing and maintaining the observatorys scientific infrastructure. His efforts on the ground were critical to the successful installation of the Local Volume Mapper, a new facility that was built as part of the Sloan Digital Sky Surveys (SDSS) fifth generation and is enabling a novel understanding of star-formation in the Milky Way and nearby dwarf galaxies.

Guillermo has a deep understanding of every facility and instrument at the LCO site, as well as of the observatorys importance to the international astronomical community and the prominence of astronomy in Chiles national identity,” said President John Mulchaey. He is the right choice to help us keep LCO and Carnegie at the cutting edge of our fields.”

Carnegie Science's Las Campanas Observatory is known worldwide for the quality of its dark skies, which remain clear and stable due to its location above the Atacama Desert—one of the most arid places on the planet.

The observatory was established in 1969 as a home to both 40-inch and 100-inch reflecting telescopes. In the early 2000s, the twin 6.5-meter reflectors saw first light, enabling scientific breakthroughs across every specialty of astronomy and astrophysics. It is also the Southern Hemisphere outpost for SDSS research, including the Local Volume Mapper and other survey efforts undertaken at the du Pont telescope. The next-generation Giant Magellan Telescope is currently under construction next door on the highest peak within Carnegie's LCO property, and other new cutting-edge research facilities are in the planning stages.

Astronomy is advancing quickly and Carnegie needs to have a leader at LCO with the scientific and technical breadth to understand the new opportunities emerging from new technologies, new questions, and a more and more interconnected system of telescopes and collaborations,” said Michael Blanton, Director and Crawford H. Greenewalt Chair of the Carnegie Science Observatories. Guillermo is that person and were thrilled to have him as the new LCO Director.”

Blancs own research focuses on how galactic ecosystems form and evolve as they interact with their surrounding environments. He is interested in the feedback systems that drive star formation and how the raw materials that supply this process change over time and what this means for the life cycles of the galaxies they inhabit.

He obtained his Ph.D. in astronomy at the University of Texas at Austin and masters and bachelors degrees in the same from the Universidad de Chile in Santiago, where he currently holds an Adjunct Professor position. 

I am honored to step into this role and laser-focused on identifying opportunities to further burnish the incredible legacy of Carnegies jewel in the Southern Hemisphere,” Blanc concluded. LCO has the best observatory staff in all of Chile, perhaps in the entire world, and I feel privileged to lead them as we prepare for an exciting future of new discoveries.”

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