Nantucket Maria Mitchell Association Winter Science Speaker Series

Website Editor • January 8, 2021

Join the Nantucket Maria Mitchell Association this winter as we welcome back some of our amazing intern alumni to discuss their fascinating research and projects. Topics will include open science, terrestrial biology, astronomy, and more!


This free speaker series is scheduled for alternating Wednesdays between January 13th – March 24th, 7:00 PM – 8:00 PM EST via Zoom. To register for a talk, please visit our website:

https://www.mariamitchell.org/learn-discover/2021-winter-speaker-series 


Read more below for the full schedule and presentation abstracts from each speaker.

Sharing is Caring: Data Sharing for Scientists and Citizens 

with Andrew Mckenna-Foster

January 13, 7-8pm via Zoom


From civic apps to COVID treatments, a new paradigm of data sharing affects all of us in significant ways. In this talk, Mckenna-Foster will discuss how new technologies, policies, and practices encourage free access to data and are together changing how scientists and governments work. He will share how his formative experience working at the MMA led to a new career in the data sharing world.



Splitting up a complex mess: Integrating Statistics to Understand the Limnonectes kuhlii complex

with Sara Schoen

January 27, 7-8pm


41% of known amphibian species are declining, but have you ever considered the decline of the species we have yet to identify? As a conservationist, it’s terrifying to think about because we won’t notice until the loss is irreversible. Some species are cryptic, meaning we don’t notice them, others are cryptic because they look almost identical to another species. These similar species can be lumped together into a single species and accidentally create a species complex. Species complexes hinder conservation efforts because the populations seem stable and healthy, but what if they aren’t a single species and we treat them like one? What happens when we lose one? Will we only know what we’re missing when it’s gone or is there another way? The good news, species complexes are a difficult, yet solvable problem. We just need some help from statistics to create new tools to delimit species complexes and define clear differences between species. This is the only way to understand declining populations and define biodiversity in an area.



Unraveling the Universe with Spectroscopy and Big Data

with Tanveer Karim

February 10, 7-8pm


The Dark Energy Spectroscopic Instrument (DESI) is an upcoming cosmological survey and experiment that will create the most precise 3D map of the Universe to-date by mapping the positions of 30 million galaxies spanning the past 11 billion years. By precisely measuring the position of these galaxies, DESI will try to shed light on the mysterious Dark Energy, the leading explanation for the accelerated expansion of the Universe, as well as test Einstein’s Theory of Relativity at the largest scales. In this talk, Karim will be discussing what dark energy is, how DESI works, how we plan to measure distances of such a large number of galaxies, and what interesting sciences we can expect over the next ten years. In particular, Karim will be discussing how he is using DESI data along with cosmic microwave background (the earliest relic light of the Universe) data to figure out how matter is distributed in our Universe.



From Near to Far: Exploring How Stars Form and Galaxies Evolve

with Abby Mintz

February 24, 7-8pm


How do stars and galaxies form? Surprisingly, there is a lot about these processes that is still unknown! To shed some light on these mysteries, we will take a look at star clusters in our local neighborhood and then travel to distant galaxies billions of lightyears away. We will learn about how massive stars’ turbulent shockwaves impact star formation in their environments and locate the missing matter in faraway galaxies to see what it can tell us about their pasts and futures. How did our Universe get to its current state? Let’s find out together!



The Debris Diet: How Microplastics are Infiltrating the Marine Food Chain

with Izzy Gaw

March 10, 7-8pm


One of the most pervasive anthropogenic stressors facing marine life today is plastic debris. In 2010, an estimated 4.8 to 12.7 million metric tons of plastic waste entered the ocean, and these input estimates are slated to increase by an order of magnitude by 2025. One of the most challenging aspects of marine debris management is that over time plastics break down into microplastics (<5 mm in size) for which the total degradation time is unknown. Not only are these ubiquitous microplastics contaminating marine fauna and their habitats, but they also have the potential to absorb pollutants thus posing a threat to ocean food webs. After fauna ingest these pollutant-absorbent microplastics, the toxins can bioaccumulate and biomagnify, which can negatively affect fish behavior and physiology. While the effects of pollutant-absorbent microplastics are relatively well studied, the baseline physiological effects of uncontaminated plastics are not well understood. This talk will explore how fauna ingest these microplastics and what happens to the microplastics inside their bodies.



Hidden Patterns in Galaxy Motions: What They Can Tell Us About the Universe

with Rachel Bowyer

March 24, 7-8pm


Galaxies move at hundreds of miles per second through space, yet they are so far away, that they appear stationary to us on Earth. However, recent advancements in observing techniques have made it possible to observe the motion of hundreds of thousands of galaxies all across the sky. These observations are revealing complex, streaming and swirling patterns in galaxy motions that are rich in information about our Universe’s formation and evolution. Specifically, these motions can tell us about the formation of structure in the Universe and about primordial gravitational waves. In this talk, Bowyer will discuss the emerging field of “real-time cosmology” and how patterns in galaxy motions can be used to study the early Universe.


This series is organized by the Maria Mitchell Association, a private non-profit organization. Founded in 1902, the MMA works to preserve the legacy of Nantucket native astronomer, naturalist, librarian, and educator, Maria Mitchell. 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 12, 2021

Contact: Kelly Bernatzky, MMA Development Associate

kbernatzky@mariamitchell.org

Recent Posts

The Birth of the Maria Mitchell Observatory: Celebrating Over 100 Years of Discovery

By Jascin N. Leonardo Finger • June 30, 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 amazing 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. Founded in 1902, the Nantucket Maria Mitchell Association (MMA) had its beginnings in the Mitchell House where Maria Mitchell was born. Over the first few years, the preservation of the Mitchell House, family artifacts, and the collection and display of Nantucket’s native flora and fauna, as well as a small library, were the key components of the MMA. Special “Moon Evenings” were held on the lawn and people observed Nantucket’s night skies using several small telescopes, including William and Maria Mitchell’s two-and-three-quarter-inch Dollond telescope. The popular evenings led to the inevitable – a desire and need to expand based on the demands of the visitors to, and members of, the MMA. In 1906, Lydia Hinchman, a founder of the MMA and a family member, purchased the house and lot adjacent to the Mitchell House. The house – once the home of William Mitchell’s father and mother – was taken down. The MMA began a dialogue with the Harvard College Observatory and its director, Edward Pickering, Ph.D. The connection to Harvard was to become essential to the success of the beginning years of the Maria Mitchell Observatory and continued a legacy of friendship and work – Maria Mitchell and her father worked with the Bonds who once ran the observatory at Harvard and the families were close friends. Besides his assistance, Pickering asked a member of his staff, Annie Jump Cannon, to assist the MMA. This “provided an indispensable collaboration for Nantucket astronomy,” with Cannon spending two weeks on the island in 1906 and 1907 lecturing and teaching. While back at Harvard, she continued to teach the students on Nantucket by mail. Cannon would go on to be recognized as the leading woman astronomer of her generation and as the founder of the MMA’s Astronomy Department. JNLF

Putting Things By

By Jascin N. Leonardo Finger • June 23, 2025
An older term, that we seem to not use that much anymore but maybe that’s in part because not many people “put things by” anymore. It is having a bit of a resurgence as people try to return to the garden and focus on local produce. My in-laws used to spend a lot of time – before I knew them – canning and preserving many different things – from jellies to string beans that became “dilly beans.” I, on the other hand, do not can produce. Frankly, I fear messing up the process and making my family sick. So, for now, I stick to making refrigerator jams and pickles. I have made some chive vinegar – that is frankly, amazing, and a brilliant shade of pink! But in any case, Bartlett’s Farm opened for pick-your-own strawberries on June 7 and I made my way over on June 8. My son has been asking for strawberry jam since about February – I told him I wait for fresh and local but he wanted some so badly he was begging for store bought. I almost caved but then I told him – out of season and they taste like cardboard – and also made a LONG journey to get to us. Once people ate with the seasons – now we do not have to with trains, planes, and ships crossing all over. It is also, why, oftentimes, fruit has no flavor. Produce is picked often before it ripens and “ripens” as it ships – or with sprays – and since many varieties have been crossed with others or engineered, we have lost the taste. I remember tasting a peach a few years back from North Carolina – fresh off the tree. After rubbing it to get all the “fur” off, I bit into an exquisite peach that tasted like a peach of my youth. So, Maria was not eating a strawberry in January but she was eating them in June – local and full of flavor. And likely, putting some by as well. JNLF

Maria Mitchell In Her Own Words

By Jascin N. Leonardo Finger • June 16, 2025
June 1851 My Dear Sister . . . . Mrs. Dassel has painted me kneeling at my telescope. It looks like Adeline Coffin and is of course not handsome. If thee was here thee would have Mitchell’s {William Mitchell Barney, son of Sally and Matthew Barney} painted at once. She has a head of a child N. P. Willis that is very lovely. She has taken a room at the Atheneum and put up about a dozen pictures – very beautiful – Isabel is lovely. She has not tried to make a portrait, but a very pretty picture . . . . She is now engaged on Abra’m Quary – he is much flattered by it and it will be a fine portrait. I think we shall buy it or a copy for the Atheneum . . . . She will paint father also for herself – having made a pencil sketch . . . .We like her very much . . . . The above is from a letter sent by Maria Mitchell to her eldest sister, Sally Mitchell Barney. In it, Maria details what everyone in the Mitchell family is up to. She includes some details about Herminia B. Dassel, an artist who came to Nantucket to paint the last Native Americans and also took an interest in the famous Mitchell family. This was of course four years after Maria’s discovery of the comet. At the time of this letter, Maria was still the librarian for the Atheneum and the portrait of Quary that she mentions possibly buying for the Atheneum, she did buy as it hangs in the Atheneum by the front door today. Another Dassel portrait of Quary is in the collection of the Nantucket Historical Association and the portrait of Isabel Draper is currently on display at the NHA’s Whaling Museum – on loan from a museum in Rhode Island. The portrait Maria states she posed for at the start of the letter is in the collection of the MMA. It was given to us in the early 1990s by Sally’s great granddaughter – the granddaughter of Mitchell whom she mentions above as well. Maria and Dassel would become good friends – Maria was named the godmother of Dassel’s daughter. And the sketch of William made by Dassel that Maria states would become a portrait? It likely did come to fruition. It made its way down a side of the family but was unfortunately lost, likely sold as part of a family estate though we do have a photograph of it and one can tell it is the brush work of Dassel. JNLF
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