Nantucket Maria Mitchell Association Welcomes Dr. Valerie Hall Featured Guest for August Science Speaker Series

August 2, 2023

NANTUCKET, MA—The Nantucket Maria Mitchell Association (MMA) announces that it will host Dr. Valerie Hall, Ph.D., as a featured presenter for its Science Speaker Series. Her presentation will take place on August 16 at 6 pm. It will be presented in-person at the MMA Research Center at 2 Vestal Street and via Zoom. This event is free to all.


This feature presentation will give an overview of the biology of the bay scallop and its unique fishery. Dr. Valerie Hall, Maria Mitchell Research Associate, and nine of her students: Ellie Kinsella and Gray Simanson; Sophia Beni, Gus Simanson, Sayam Thapamagar, James Borthwick, Kate Kinsella, Julia Winsor, and Aiden Haase will first describe the biology of the Nantucket Bay Scallop, Argopecten irradians. This presentation will cover the Bay Scallop classification, habitat, distribution, ecological niche, life cycle, reproduction, timing of spawning, predators, parasites, and environmental hazards the species faces. Students will then describe the laboratory and field program which is now in its eighth year at the Maria Mitchell Association. They will also share their experiences on scallop collecting trips in addition to the process of dissecting and preparing the reproductive tissue for histology (the process by which microscope slides are prepared from thin sections of gonad). Finally, students review their examination of prepared slides to determine the degree of spawning of each collection and co-relate their findings to water temperature. Students not only learn how to collect and analyze data but also to master the biology of this species while they gain experience and skills working as a part of a team in a research laboratory setting.


Dr. Valerie Hall has lived on Nantucket for 46 years. After a 35-year career teaching high school science, mostly on Nantucket, she earned her Ph.D. in Fisheries Oceanography at the University of Massachusetts’ School for Marine Science and Technology in 2014. She then began a research and mentoring program at the MMA which has just completed its eighth summer. During that time, Dr. Hall has worked with over 80 high school and college students alike. Students earn community service hours and have benefitted immensely from Dr. Hall’s program, many of them asking to return for subsequent seasons.

This presentation is complimentary and held both in-person, at the MMA’s Research Center located at 2 Vestal Street, and via Zoom, please pre-register.



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

August 2, 2023

Contact: Grace Baisley

marketinginterns@mariamitchell.org

Recent Posts

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. ###
By Jascin N. Leonardo Finger July 14, 2025
As we are now complete with the conservation of the historic Maria Mitchell Vestal Street Observatory (MMO), I thought it would be good to post a series of blogs concerning it history and activities, as well as some of the remarkable people who have made it what it is over the last 100 plus years. Therefore, over the next few weeks, the focus will be on the MMO. And it is now open for tours – Monday through Saturday 11-1PM. In 1906, the MMA was given Maria Mitchell’s five-inch Alvan Clark telescope which Mitchell purchased with money raised by the Women of America in 1859. With the telescope, a fireproof observatory was needed to house it and the activities surrounding its use. A campaign was developed to raise the funds for an observatory and in approximately four months, a small observatory was built at a cost of $4,800.00. Completed in 1908, the Maria Mitchell Observatory now was in need of a permanent astronomer. An Observatory Committee was developed and chaired by Annie Jump Cannon. From 1909 through 1911, the MMA was able to employ an astronomer to teach classes, observe, provide lectures, and open the observatory for public observing for approximately a month each summer. As the demand grew, the MMA realized that a more extensive program was needed and the Astronomical Fellowship Committee began to raise funds for an Astronomical Fellowship Fund. With the support of many generous donors and a matching gift from Andrew Carnegie, by 1911 the MMA had the funds it needed to support the fellowship and began its search for an astronomer who would conduct research, provide lectures and classes, and conduct open nights for the public from mid-June through mid-December. The fellow would spend the remainder four months in research and study – every fourth year a full year of study would be spent in an American or European observatory. JNLF
By Jascin N. Leonardo Finger July 7, 2025
July 31, 1883. I had two or three rich days! On Friday last I went to Holderness, N.H.. to the Asquam House; I had been asked by Mrs. T to join her party. There was at this house Mr. Whittier, Mr., and Mrs. Cartland, Professor and Mrs. Johnson, of Yale . . . The house seemed full of fine, cultivate people. We stayed two days and a half. And first of the scenery. The road up to the house is a steep hill, and at the foot of the hill it winds and turns around two lakes. The panorama is complete one hundred and eighty degrees. Beyond the lakes lie the mountains.  The Asquam House sat atop Shepard Hill and was built in 1881. A hotel, it has space for fifty guests, it was located near Squam Lake and became part of a summer enclave that developed there in the later part of the nineteenth century. Today, the area is a National Historic Landmark, but sadly, the hotel was demolished in 1948. Maria would have been familiar with these people seen here – and others I did not include – but particularly John Greenleaf Whittier who was something of a family friend. He was close to one of her younger brothers, William Forester. JNLF
Show More