Jess Holz

When the brain states back: spooky neuron faces I’ve found, for halloween (‘eye’ see u…) #sciart #electronmicroscopy #pareidolia

yep! only a couple minutes of exposure time tho

saw 3 tardigrade exoskeletons with a single egg inside, including this one in the timelapse above, anyone know much about this tactic?

Highlights from the day below. #sciart #tardigrade #microscopy

Had a blast at Artisans Asylum open studios scoping tardigrades. Made some fun timelapse too with the ciliates in the sample providing the ‘scribbles’. Def attracted nerdy types with the tardigrades, but even people who didn’t know what they were were captivated by their cute little wiggles.

Nice to see artwork from my new scope finally on paper. Gearing up for Artisans Asylum open studios this Saturday 2-7pm. I’ll be selling plankton stickers and will have a live tardigrade station! #sciart #microscopy

Boston folk, Artisans Asylum fall open studios is next Saturday, 2-7pm. I will be setting up a live tardigrade station in my studio! :) Would love to see you there. tinyurl.com/FallIntoMaking #sciart #microscopy

thanks!

I just love their pigment designs does anyone know about the function?

If anyone on here knows how to ID polychaete larva, I’d love to work with you on getting to the species level on these worms I always find in Boston harbor. I could provide a ton of photos, if I knew what to image for an ID. I know they are spionid but that’s it. #sciart #microscopy #plankton

These things are sooooo weird looking lol

Many thanks!

@copepodology.bsky.social any ideas?

Copepods (Subclass Copepoda) Copepods from Tremont, ME, USA on August 25, 2025 at 05:41 PM by pinkbeetle. weird robot looking copepod. Would love an ID on this one!

Still looking for an id on this weird robot looking copepod I found on vacation in Maine, anyone have any ideas? www.inaturalist.org/observations... #sciart #microscopy

yep

anyone on here an expert on fluids?

Polychaete larva cilia currents in timelapse. #sciart #microscopy #plankton

For #fluorescencefriday I just thought these neurons in the lateral geniculate nucleus were pretty. #sciart #microscopy #confocal

Really loved this part of Plankton Performance at MIT museum. This part of Movement II: Charles river is done using timelapse and fluorescence microscopy. Note all the filamentous cyanobacteria. Big red blobs are rotifers with chlorophyll in their bellies swimming around. #sciart #experimentalvideo

YouTube video by Jess Holz Plankton Performance at MIT Museum Sept 12th 2025

If anyone is curious to see Plankton Performance at MIT Museum last Friday (my collaboration with sound artist Senem Pirler and local Boston plankton under the microscope), I just uploaded a video here: youtu.be/mIxZhLeqJoo?... #sciart #microscopy

Also anyone have an id on this mystery critter from the Charles river I followed during the performance?

Hope to do a lot more collabs with Senem. Also my friend who works at the museum gave us the cutest gifts afterward. MIT museum has a killer gift shop- and for my stuff it’s just a fantastic space. Copepod bigger than a human on that screen! #sciart

I’m a day late for #fluorescencefriday but I had a blast at MIT museum ‘performing’ with live improvised sound by Dr. Senem Pirler. Vid shows fluorescence microscopy of the Charles river, note all the cyanobacteria. #sciart #plankton

cool! yea i forgot it came from jellyfish right? Unfortunately I only have low magnification fluorescence so cannot ID it. I did notice a lot of little dinoflagellates in the sample though

Last call for tickets for this unique concert! This is a big one for me so Boston folk, I’d love it if you could join. Video shows the trails of diatoms in timelapse. mitmuseum.mit.edu/programs/pla... #sciart

Plankton Performance, this Friday 7pm at MIT museum. I will be collaborating with plankton from the Charles river under my leicamicrosystems.bsky.social microscope, while Senem Pirler responds to their movements and behavior with sound. mitmuseum.mit.edu/programs/pla... #sciart

A rare green fluorescent flagellate, ‘swimming plant’, trails in timelapse under fluorescence microscopy. Anyone know what causes green fluorescence in marine critters? 99.9% of flagellates I find are red from chlorophyll. Sample collected from Boston harbor. #sciart #algae #plankton

timelapse of debris being swirled by currents

Also found blue copepods, red copepods, and robot looking copepods (middle pic). Can anyone help with an ID? #sciart #plankton