Nantucket Maria Mitchell Association REU-NSF Interns Attended the 245th American Astronomical Society Meeting in Washington, D.C.

January 24, 2025

NANTUCKET, MA—On the occasion of the 245th American Astronomical Society (AAS) Meeting, and the 178th anniversary year of the discovery of Miss Mitchell’s Comet, interns from the Maria Mitchell Association (MMA) of Nantucket Island, journeyed to Washington, D.C., to represent the MMA and present their work. Building on the legacy of Maria Mitchell, the first female American astronomer, the MMA offers STEM research and education opportunities to interns from across the country via their paid internship programs.

 

The MMA’s Maria Mitchell Observatory has operated the National Science Foundation- Research Experiences for Undergraduates (NSF-REU)- program each summer for decades. The program is funded by a generous grant from the National Science Foundation, which allows the MMA to bring six top undergraduate students to the MMA each summer who are selected out of a pool of approximately 380 applicants from around the United States.

 

January 12 -16, the MMA’s Summer 2024 NSF-REU interns presented their research on fascinating subjects, from finding baby stars, to understanding how galaxies grow over time, and how dark matter influences galaxy cluster collisions. MMA Executive Director, Joanna Roche, attended the conference and presented each student with a bound book of their cohort’s papers. “The research and projects that this year’s REU interns presented are as fascinating as they are well done. We are so proud to continue the tradition of nurturing young scientists through our REU program.”

 

This summer’s NSF-REU interns and their research presentations which they presented at the AAS are: 


Naija Bruckner | Rice University
, majoring in Astrophysics, presented “Probing Circumgalactic Medium Turbulence with Synthetic Absorption.” Her topic was turbulence in the circumgalactic medium (the gas around galaxies). By examining snapshots of simulated galaxies at different redshifts, she found that higher ions are better tracers of turbulence and movement of gas in the CGM than low ions. This finding can be used to improve our interpretation of observed CGMs and the movement of gas within by looking at absorption lines particular to higher ions in actual observation.

 

Sophia Chan Davis | University of Michigan, double majoring in Astronomy & Astrophysics and Interdisciplinary Physics with a minor in Museum Studies, presented “Shining the X-ray light on Planetary Nebulae in Globular Clusters.”. She focused on investigating the origins of planetary nebulae in globular clusters, utilizing advanced X-ray observations to enhance our understanding of stellar evolution.  Her findings suggest its X-ray emissions come from shock interactions within the nebula, making K648 the most distant planetary nebula with X-ray emission ever observed.


Jillian Epstein | Cornell University, 
majoring in Engineering Physics and minoring in Astronomy, presented “Searching for X-ray Counterparts of Protostellar Cores.”  She is interested in optics and astrophysics with a particular interest in high-energy astrophysics, cosmology, and astrophysical instrumentation. She used archived Chandra X-ray Observatory data to research the X-ray components of protostars under Dr. David Principe from the MIT Kavli Institute. Epstein utilized the CAIO suite of tools in Python to analyze X-ray spectra.

 

Fiona Lopez | Texas A&M University, majoring in Physics and Astronomy, presented her research titled “Understanding the Interplay Between Dust, Gas, and Stars in High-Redshift Galaxies with ALMA and JWST” in collaboration with Dr. Mónica Relaño from the University of Granada, Spain. Her work explores the complex roles of interstellar dust, gas, and stars in high-redshift galaxies, leveraging observations from ALMA and the James Webb Space Telescope (JWST) to gain deeper insights into these distant cosmic systems. 

 

Nicolas Mazziotti | University of Arizona, majoring in Astronomy and Physics, presented, “Exploring Dark Matter and Galaxy Clusters.” His presentation at AAS was about his MMA research with Dr. Lindsay King (UT Dallas) on simulations of merging galaxy clusters. 

 

Gada Tefera | Pomona College, majoring in Computer Science, presented “Investigating the Impact of sub-DLAs on the Neutral Hydrogen Mass Density of the Universe.” He focused on investigating the contribution of sub-Damped Lyman Alpha systems to the neutral hydrogen content of the early universe using spectra from the KODIAQ DR3 sample of 727 quasars. He developed and implemented spectroscopic analysis methods using Python tools, including LineTools and XSpectrum1D, to identify and characterize absorption systems. He led a systematic search resulting in the identification of 555 absorbers, including 415 sub-DLAs, representing one of the largest high-redshift sub-DLA samples ever assembled. He performed analysis of absorption features and metal line systems to determine column densities and metallicities across redshift range 2 < z < 6. 

 

The Maria Mitchell Association was founded in 1902 to preserve the legacy of Nantucket native astronomer, naturalist, librarian, and educator, Maria Mitchell. After she discovered a comet in 1847, Mitchell’s international fame led to many achievements and awards, including an appointment as the first female professor of astronomy at Vassar College. Maria Mitchell believed in “learning by doing” and today that philosophy is reflected in the MMA’s mission statement, programs, research projects, and other activities. The Maria Mitchell Association operates two observatories, a natural science museum, an aquarium, a research center, and preserves the historic birthplace of Maria Mitchell. A wide variety of science and history-related programming is offered throughout the year for people of all ages.
 

####

For Immediate Release

January 24, 2025

Contact: Joanna Roche

jroche@mariamitchell.org

Recent Posts

By Jascin N. Leonardo Finger July 28, 2025
August 1, 2025 marks Maria Mitchell’s 207 th Birthday! Since just about the founding of the Maria Mitchell Association – way back in 1902 – the MMA has hosted some celebration or marked the occasion of our namesake’s birth. From 3-5PM FRIDAY, AUGUST 1, 2025 , Vestal Street will be close to traffic and our Vestal Street properties will be open free to the public. We will have activities, games, art projects, live music with Susan Berman and Ray Saunders, and refreshments will be served. So, stop by and say hello! JNLF P.S. If we actually get rain, we will move our celebration to Saturday, August 2 - so keep your ears out! We will decide Wednesday.
By Jascin N. Leonardo Finger July 21, 2025
The MMA found its first astronomer in Margaret Harwood, a 1907 Radcliffe graduate who worked in the Harvard Observatory. Her fellowship began in 1912 and over the first year, she researched, continued to conduct public lectures and open nights, and worked with students of all ages – including those in the public schools. She returned to Cambridge for the winter months where she continued to work at the Observatory. In 1915, she took her leave as was authorized by the fellowship and acquired her master’s degree in astronomy at Berkeley. She returned to Nantucket in 1916, accepting the position of Director of the Observatory. This made Harwood the first woman to head a small private observatory in the United States. Harwood continued her research, with a focus on variable asteroids, published results of her work in numerous publications, and continued to lecture and host open nights. She had assistance from others, including island carpenter and school teacher, Alvin E. Paddock. Harwood became a “first –class celestial photographer . . . accumulating a valuable set of Nantucket photographic plates of variable stars . . .” which are still part of the MMA collection and were the first in the world to be completely digitized. Over the course of her tenure, more than 3,600 plates of the night sky were taken – more than 2,100 by Harwood herself. In the 1950s, Harwood was the first woman to gain access to the Mount Wilson Observatory then the world’s leading observatory, where she was able to use the photographic instruments to further her research. Harwood is seen in the photograph here as she looks for Venus during midday in the MMO using the Cooke-Clark telescope, guided by Maria Mitchell’s own Alvan Clark. JNLF
July 14, 2025
NANTUCKET, MA— The Nantucket Maria Mitchell Association (MMA) announces Kike Calvo, award-winning photographer, journalist, and author, as its featured presenter for its July Speaker Series. Calvo’s presentation, "The Power of Creativity: A Journey Through Storytelling, Exploration, and Hope," will take place on Wednesday, July 23 at 7pm at the Nantucket Atheneum’s Great Hall. This event is free. Join the MMA for an engaging evening with award-winning photographer, journalist, and author, Kike (Kee-Keh) Calvo. A Fellow of both the Explorers Club and the Royal Geographical Society, he has traveled to over 120 countries, photographing everything from belugas in the Arctic to traditional dances in Vanuatu. His work has been featured in National Geographic Magazine, The New York Times, Rolling Stone, and more. In this engaging presentation, Calvo explores how creativity can be a catalyst for connection, storytelling, and meaningful change. From documenting remote villages to diving with great white sharks, from defying the odds as an author to inspiring thousands of children in the Amazon, Calvo shares the invaluable lessons he has learned along the way. As a National Geographic Certified Educator and Safina Center Fellow (2020-2023), Calvo combines his passion for photography with teaching, having lectured at prestigious institutions such as Yale University. A pioneer in drone photography for art and conservation, he founded the “Little Explorer, Big World” initiative, which brings education to remote communities and has donated over 35,000 bilingual books. Described by anthropologist Wade Davis as, "a fresh voice in visual anthropology," Calvo has a gift for capturing the intersections of human existence. Calvo’s new book, Luminous: A Field Guide for Visual Explorers and Storytellers, isn’t just a book—it’s an invitation to slow down, look deeper, and photograph with soul. It’s a roadmap where photography meets presence, anthropology meets art, and storytelling becomes a path to connection.  Discover how creativity can illuminate pressing global issues—such as plastic pollution—and empower each of us to make a difference. This presentation is free and open to the public, graciously hosted for the MMA by the Nantucket Atheneum in the Great Hall. No registration required. About the Maria Mitchell Association: The Maria Mitchell Association was founded in 1902 to preserve the legacy of Nantucket native astronomer, naturalist, librarian, and educator, Maria Mitchell. After she discovered a comet in 1847, Mitchell’s international fame led to many achievements and awards, including an appointment as the first professor of astronomy at Vassar College. Maria Mitchell believed in “learning by doing” and today that philosophy is reflected in the MMA’s mission statement, programs, research projects, and other activities. The Maria Mitchell Association operates two observatories, a natural science museum, an aquarium, a research center, and preserves the historic birthplace of Maria Mitchell. A wide variety of science and history-related programming is offered throughout the year for people of all ages. ###
Show More