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

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The Ancient Vine

By Jascin N. Leonardo Finger • May 11, 2026
A repost – with my apologies – from last year. It started budding the week of April 30 this year. This is what our landscaper for the MMA calls it. “The ancient vine.” He tells the people who work for him not to touch the “ancient vine.” I have probably made him – and all of them – terrified of it. I am even terrified of it to some degree. I refer to the grape vine behind the Mitchell House that is supposed to be Peleg Mitchell Junior’s grape vine – Maria Mitchell’s uncle who inhabited the house from about 1836 to his death in 1882. It has two trunks but one died several years ago. Because of that, each year I try to root shoots. It’s fairly easy to do – when you cut back the vine in late fall/early winter. I have had success but not success protecting the shoots I baby all winter from bunnies and other critters once I plant them – try as I might. I started doing this when the one trunk died – I was PANICKED! The landscaper stays away because I have told him if anyone is going to accidentally harm or worse yet, kill, this grape vine it would be me so I only have myself to blame. So each November/December – once ALL the leaves have fallen off – I climb my ladder and quietly, carefully, and fearfully cut back the stems typically to two buds. I have been somewhat successful in spurring grape production – and these grapes attract some amazing birds in the fall. It takes me some time – and I pretty much hyperventilate the entire time – and then, I stare at it all winter. Passing under it multiple times a day to reach my office. Hoping, and yes, praying, it will come out in the spring. It’s a late budder so just recently the buds started to show themselves – thank goodness! – and I was rewarded today (May 5, 2025) with this wonderful hot pink color on the edges of the leaves as they are uncurling. JNLF

Maria Mitchell In Her Own Words

By Jascin N. Leonardo Finger • May 4, 2026
May 6, 1878 Between the clouds, Miss Spalding obtained 7 photographs of Mercury on the Sun. It is comfort to me to be able to plan and do a new kind of work. The large telescope worked better than usual, Clark having just been to the Observatory. Clark, as in Alvan Clark, a man who would become the premier telescope maker in America and who built Maria Mitchell’s 5-inch Alvan Clark refractor that she purchased from him (after working with him to build it per her specifications) with money gifted to her from “The Women of America” led by Elizabeth Peabody. More than likely, it is this telescope she is referring to as she did use it in the Vassar College Observatory with her students – and it is also taking center stage in photographs, along with her (first her father’s) Dolland telescope.  Maria had decided she would photograph the Sun on every clear day, and this was one of those results. She would use these images, with her students, to study sun spots and their changes. With her students, Maria would photograph the transit of Mercury as noted above. She would also photograph the transit of Venus a few years later with her students. JNLF

Spring Has Sprung!

By Jascin N. Leonardo Finger • April 27, 2026
And with it, some of the heirloom daffodils I purchased for the Mitchell House last fall. A place was recommended to me by two longtime friends of the MMA and gardeners extraordinaire. It is called Old House Gardens. I ordered a small amount as we now have a plethora of voles on Vestal Street – I believe I complained about them here last year. They won’t eat daffodils so I got a few of “Butter and Eggs” (1777) and “Conspicuus” (1869) as either of these could have appeared in William Mitchell’s gardens. They were not listed in a letter from John Quincy Adams that I have mentioned before. But, Adams was not here visiting the Mitchell family when the daffodils would have been in bloom. The one pictured here is “Butter and Eggs” not completely unfurled. JNLF
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