Jennifer Lynn Bartlett

“When she did her hair, she would put the bobby pins in her mouth.  She had the highest urine count in the place.”

So true. So tragic.
#histsci

www.daytonhistorybooks.com/building_the...

Black-and-white vintage photo of a woman in a plaid dress standing beside tall racks of electronic equipment, holding papers and adjusting a control knob on the front panel, surrounded by numerous dials, gauges, and switches. Carolyn B. Parker standing before a bank of testing instruments, taken at Wright Field, near Dayton, Ohio, ca 1945. courtesy Leslie Carolyn Edwards, appeared in Mickens, R. E., & Patterson, C. E. 2021, "Carolyn Beatrice Parker: A Life in Physics," History and Philosophy of Physics Newsletter, XV (College Park, MD: American Physical Society), 1, https://cdn.ymaws.com/nsbp.org/resource/resmgr/bhm-images/FHPP_Fall21.pdf

Carolyn Beatrice Parker (1917-1966)
#nuclearphysicist

BA Fisk 1938 #Physics
MA U Mich 1941 #Math
MS MIT 1953 Physics

WWII Dayton (part of Manhattan) project #scientist

1st African-American woman to earn Physics graduate degree

#WomeninSTEM #histsci #AfricanAmericanHistoryMonth #atomicphysics 🍎 🧪

Carved and painted wall of ancient Egyptian hieroglyphs, featuring rows of symbols such as ankhs, birds, scarab beetles, animals, and sun disks in red, yellow, blue, and green on pale stone above a doorway in a temple. Symbols in cartouches in bottom and middle registers on right are clear. Symbols on top and middle registers on left appear to have been chiseled away. Photograph of Djeser-Djeseru, Temple of Queen Hatshepsut at Deir el-Bahari, 2013, courtesy of kairoinfo4u (CC BY-NC-SA 4.0) via Flickr

Some think that any attention, even bad attention, is better than no attention at all. ("All press is good ...")

Unfortunately, damnatio memoriae and abolitio memoriae have also tended to draw attention to the empty space, granting further fame, even if infamy

#history #egypt #memory #Hatshepsut

A somber 19th‑century interior scene of a church or chapel where people stand in a quiet line. At the center, an elderly, stooped man in a long beige coat leans on a cane and approaches a priest in white robes, who stands behind a dark wooden railing and reaches out a hand offering ashes. Around them, several women and children in dark, modest clothing watch, including a little girl in a red hooded cape who stands beside a taller woman in a gray dress on the right; both have ashes on their foreheads. The background is filled with wooden paneling and columns, and the floor is patterned with black‑and‑white tiles, giving the painting a subdued, devotional atmosphere. painting, Ash Wednesday by Charles de Groux, 1866, courtesy Stedelijk Museum Wuyts-Van Campen en Baron Caroly (#136776), Lier, Belgium

To those who observe, you are marked on #AshWednesday with a cross of #hope, not just #repentance. May you find grace

Western Christians begin #Lent on Feb 18 2026
Orthodox Christians begin #GreatLent Feb 23
Both count back from #Easter but approx #vernalequinox differently

#Calendar #histsci 🍎

A densely packed 16th‑century village carnival scene in a town square, shown from above. Dozens of small, brightly dressed figures crowd the muddy open space between brick houses and a large gray church on the right. People eat, drink, play games, dance, wrestle, and parade in costume. In the lower center, a man in colorful clothes rides two large beer barrels, while nearby others cook over a fire and sell food from stalls. At the bottom right, a figure dressed as a mock king in pale blue robes sits on a small wheeled platform surrounded by revelers. Scattered props—buckets, masks, musical instruments, benches, and carts—dot the square, and background streets and buildings are filled with more people watching or joining the festivities, creating a busy, chaotic festival atmosphere. painting The Fight Between Carnival and Lent by Pieter Brueghel the Elder in 1559, courtesy Kunsthistorisches Museum (GG_1016)

To those who celebrate, whether you say #MardiGras or #ShroveTuesday, remember #Lent is coming.

#Food traditions, like #pancake suppers, consume eggs, sugar, and fat that were forbidden during Lent and might otherwise have been wasted.

#Calendar #Timekeeping #History 🍎

Formal 18th‑century painted portrait of a young military officer standing outdoors, wearing a bright red uniform with dark blue cuffs and trim, a black tricorne-style hat, and a white neckcloth. A powder horn hangs at his chest on a strap, and a long musket rests upright by his right side. His left hand is tucked into his waistcoat, and a pale sash crosses his chest. The background shows a cloudy blue sky, trees, and a distant landscape. Portrait of George Washington as Colonel in the Virginia Regiment, by Charles Willson Peale, 1772. courtesy of Washington-Custis-Lee Collection, Washington and Lee University, Lexington VA

When Mary Ball Washington (c1708-1789) brought her son George into the world, her (Julian) calendar read
Feb 11, 1731
In 1752, Britain & her colonies switched calendars, making his birthday
Feb 22, 1732
in the new (Gregorian) style.

#GeorgeWashingtonsBirthday not #PresidentsDay #Calendar #History

#astrophysicist
#SoftwareDeveloper
#WebDesign er
#strategic thinker
#dog trainer
wife

Mugdha Polimera, you inspire me

www.cfa.harvard.edu/news/scienti...

#WomenInSTEM @scixcommunity.bsky.social #astrophysics #BlackHole #AAS247 #ExploreAstronomy

My guess is Mike Kurtz preparing to retire.

painting of a woman in antique clothing reading a prayer book and holding beads stands in front of a window and lit candle, tempera over gesso on mahogany wood, Candlemas Day by Marianne Stokes (1855-1927) c. 1901, Tate #T02108, Presented by the Trustees of the Chantrey Bequest 1977, public domain

To those who celebrate, may you walk in #light.

#Candlemas
#Imbolc
#StBrigidsday

Enjoy your #crossquarterday.
Northern Hemisphere is ~halfway from #wintersolstice to #vernalequinox; #Spring is coming.

#astrophysics #calendar #season #solstice #equinox #Earth #Sun #histsci

Photograph of box containing negative glass photographic plate with image of star field along with yellow top printed with logo for Kodak Plates and handwritten note "Do Not Open! 1/8/83". Box top and sky through unseen background window is partially reflected in glass. Box and top are sitting on desk with mugs in and other partial objects in behind them.

That moment when you return from travel & discover a mysterious box of astronomical photographic plates occupying your desk.

love my job @scixcommunity.bsky.social

#astrophysics #astrophotography #photography #histsci

YouTube video by AAS AAS Journal Author Series: Ben Cassese on 2025PSJ.....6..252C

Ben Cassese (Columbia Univ, Yale Univ) discusses his article on a differentiable solar system ephemerides software instrument and where this work can take us next.

This series connects authors with their article, their human story, and the larger #astronomy community. youtu.be/pwhW8q8xGX8 🔭

The Ring Nebula Has an “Iron Bar” New observations reveal a strange structure in the iconic nebula that has evaded astronomers for centuries.

New observations reveal a strange structure in the iconic nebula that has evaded astronomers for centuries.
skyandtelescope.org/astronomy-ne...

This Week's Sky at a Glance, January 30 – February 8 The dazzling Moon occults Regulus Monday night while Regulus is announcing February. Betelgeuse turns the Winter Hexagon into the Heavenly G.

The gibbous Moon shines amidst Jupiter, Pollux, and Castor tonight. That's their order of brightness, fr0m brightest to faintest. Can you get a photo that shows all of them well, despite their vast brightness differences?
skyandtelescope.org/astronomy-ne...

We can't believe it's already the last day of #AAS247! We have LOVED meeting you at our stand as part of the Center for Astrophysics Harvard & Smithsonian's MEGABOOTH! Thanks for attending our talks, poster sessions and workshops. Keep exploring science at SciXplorer.org

We love to see it too, Peter! Want to make your own? Dive in and explore for yourself at scixplorer.org! #AAS247

Screenshot of Summary and Setup of Library Carpentry lesson: Science Explorer (SciX): Open Science Discovery Engine with 4 modules: Intro to SciX and FAIR principles, Basic Searches in SciX, Literature Exploration in SciX, SciX and ORCiD

#AAS247
mentoring students on their 1st research project?
help them start strong on literature search w/ #LibraryCarpentry lesson on #ADSabs/#SciX

#SciX: #OpenScience Discovery Engine
iPoster 407.02 terminal 27
Thu Jan 8 2026, 9 AM MST

#library #NASAscience #FAIR #IMLS #ORCiD #ExploreAstronomy 🍎☀️

Round graphic of a silhouette of a tree with stars instead of leaves and exposed roots against a dark blue background with fainter stars above the legend AstroGen

#AAS247
Ever wonder who made your adviser the researcher & mentor they were?
Trace your academic lineage w/

#AstroGen: Building Prof Community
iPoster 408.08 terminal 37
Thu Jan 8, 2026, 9 AM MST

#astrophysics #academia #genealogy #mentor #ExploreAstronomy #histsci #planetaryscience☀️🍎

3 men richly dressed in tunics, hose, shoes, cloaks, and peaked red hats offer gifts. The one farthest to the right has white hair and a beard. The one farthest to the left has black hair and a beard. The middle is beardless with brown hair. In the background, green palm trees stand out against a golden sky and the names Balthasar, Melchior, and Gaspar. At their feet, there is a carpet of green grass with some flowers and shrubs. At the very bottom is a geometric boarder. The image is a detail from detail from: "Mary and Child, surrounded by angels", a mosaic of a Ravennate Italian-byzantine workshop, completed within 526 AD by the so-called "Master of Sant'Apollinare" in Basilica of Sant'Apollinare Nuovo in Ravenna, Italy. Photograph by N. A. Thune (CC-BY-SA 2.5).

To those who celebrate, may you receive the gift of wisdom. Blessings at #Epiphany.

Sally Bosken told me all #astronomers had to have a #starofbethlehem speech ready. Thanks to her, I do.

#calendar #timekeeping #seasonoflight #12daysofchristmas #astrophysics #histsci

On left, 1895 paper by Edward C. Pickering about "A new Star to Centaurus. The new Algol Variable in Delphinus." On right, photograph of a photographic plate negative of sparse star fields. Stars are barely discernible. An illegible handwritten note appears at the top of the plate. One star is circled; another is partially circled. A large question mark is written in the middle right. "123?" is written in the middle left. Most of the markings are black. A third star is circled with a trailing line in red.

#AAS247 @scixcommunity.bsky.social
We linked @harvardplatestacks.bsky.social #photography plates to papers in #ADSbabs / #SciX

SciX & StarGlass: Future of Historical Sky
Tue Jan 6 @ 5:30 PM MST
iPoster 272.04 term 23

Technique can enhance yr papers w/ even more
#astronomy #digitallibrary #histsci

Sun sets over ice field

#AAS247 ever wonder what doing #astrophysics on an #arctic #icebreaker would be like?

Ask me at
"Observing an Arctic Sunset"
iPoster 107.07 terminal 39
Mon Jan 05, 2026 9 AM MST

#ExploreAstronomy #celestialnavigation #refraction #Sun #sunset ☀️

Heading to #AAS247? Are you an existing #ADSabs user and feeling a little #SciX-curious? Join the team on Sun Jan 4 for a free 1-hour workshop! We have sessions at 1:15pm, 2:15pm, and 3:15pm. Sign up now! #Astrophysics #PlanetaryScience #NASAScience #OpenScience #EarthScience

While the big day may be over for another year, and the reindeer are catching a few zzzs, the fun doesn't stop - especially if you're attending #AAS247! We're going to be there with a booth, talks, posters, and three FREE workshops to ease you into the SciX Community! Sign up NOW

Selections from 2025: The Nine-Ringed Bullseye Galaxy Researchers discovered a record-breaking giant nine-ringed galaxy that provides critical insight into galaxy formation and evolution.

Selections from 2025: Researchers discovered a record-breaking giant nine-ringed galaxy that provides critical insight into galaxy formation and evolution. aasnova.org/2025/12/23/s... 🔭🧪

Graphic advertising a American Astronomical Society meeting workshop, which states, "AAS 247 still time to register. Free 1 hour workshops Sunday. Pick your session (3 choices). Accelerate your science (infinite possibilities)" with the Science Explorer logo and SciXplorer.org website address below five vertical rectangles containing NASA photographs representing the disciplines of Earth science, planetary science, astrophysics, heliophysics, and biological and physical sciences.

#AAS247 #SciX curious?

Ready to commit to the new powerful #ADSabs interface?
Just want the ADS Classic secret sauce?

Join @scixcommunity.bsky.social Sun Jan 4 for a free 1-hour workshop (sessions at 1:15, 2:15, 3:15 PM)

#astrophysics ☀️ #planetaryscience #NASAscience #openscience #earthscience

Two images of the Earth. The upper shows the reflected solar radiation on the winter solstice 2004 with the most light reflected in the southern polar region and the least in the northern polar region. The lower shows the reflected solar radiation on the summer solstice 2005 with the most light reflected in the northern polar region and the least in the southern polar region. In both images, the mid-latitudes show a complex gradient of swirling reflected solar radiance depending on latitude and surface conditions. Image credit: T. Wong & CERES Science Team, NASA Langley (public domain) via Wikimedia Commons

For those who celebrate, wishing you joy & light throughout the longest night. #wintersolstice blessings

Angle of rays, length of days are the reasons for the seasons
as shown in these #NASAScience solar reflectance maps

#SeasonofLight #calendar #timekeeping #astrophysics #winter #Sun #solstice 🍎☀️

I think I replied and expressed interest earlier but am uncertain.

still life photograph of a bronze head of a bearded man with curly hair wears a red cap surrounded by evergreens with red berries, two cards displaying a painting of a man wearing a toga, a pine cone, a lit red candle, an unlit oil lamp, a clay boar, and a clay chicken; Carole Raddato 2015 CC-BY-SA 2.0 via Flickr

For those who celebrate, Io, Saturnalia!

Running from Dec 17 to ~23, #Saturnalia celebrated a #Roman Golden Age when #Saturnus ( #Saturn) ruled & taught his people #argriculture and civilized behavior by reversing the normal social order.

#SeasonofLight #calendars #timekeeping #Rome #history 🍎

Winter Solstice Arrives on Sunday Dec 21 We explain the reason for the seasons and what it means to have winter solstice.

Sunday is the Winter Solstice, the shortest day and longest night of the year. Why does our planet have seasons, when other planets like Venus and Jupiter do not? I posted a full explanation at: www.fraknoi.com/.../winter-s...
#astronomy #astroed #sky #scienceteaching #scienceeducation #science

Illumination from 1300s Spanish Bible, courtesy International Collection of Digitized Hebrew Manuscripts/ National Library of Israel

For those who celebrate, chag urim sameach. May your Hanukkah & home be full of light.

#Hanukkah begins 25 Kislev & lasts 8 days
Jewish #calendar varies number months/yr, days/month achieves both solar & lunar alignment
This year Kislev is 30 d so #Chanukah ends 2 Tevet

#Seasonoflight #timekeeping

Selections from 2025: The Sun Changed Course in 2008 During the exceptionally deep solar minimum of 2008, researchers thought the Sun might be entering a prolonged period of low solar activity — but the Sun had other plans.

Selections from 2025: During the exceptionally deep solar minimum of 2008, researchers thought the Sun might be entering a prolonged period of low solar activity — but the Sun had other plans. aasnova.org/2025/12/18/s... 🔭🧪