Rachel O'Brien

Seasonal for sure, but maybe not the best expert on skin care 😂

The Kenagy Lab at UMN is hiring a postdoc to join an upcoming ground-based field campaign focused on particle formation chemistry in agricultural regions. Details at z.umn.edu/farmsteadpos.... Contact Hannah (hskenagy@umn.edu) with questions!

Good report on a frustrating situation by @kvasquez.bsky.social cen.acs.org/policy/resea...

This is Tommy. Tommy had a question about my allegiances. Listen to the end to hear about his.

Kīlauea is erupting! m.youtube.com/watch?v=HggW...

Me as a 19 year old university student going out on the weekend to the bar and also me as a 49 year old university professor going out on the weekend to the pharmacy for vaccines

As a PhD student designing my first survey, I added what I thought was a throwaway question at the end. To my surprise, thousands of academics answered it! The paper is out today: doi.org/10.1093/pnas...

Embers Nicki Ault 2022

Maria Martinez (1887–1980), world-renowned Native American ceramic artist from the San Ildefonso Pueblo in New Mexico #WomensArt

Happy fall! The O'Brien and Szczuka labs had fun apple picking!

We are soon going to have to come to grips with the fact that this shit is asbestos for the mind

The work of Anne Damer (1748- 1828), English sculptor. Described as a "female genius", one of the 1st recognised women sculptors, who lived with her lover, Irish actress Elizabeth Farren #WomensArt

Come be my colleague! We are hiring an experimental physical chemist #chemjobs #facultychemjobs csusystem.wd12.myworkdayjobs.com/en-US/fortco...

This is going to be very crowded.

Hills of Thunder Bay Terry Watkinson 2020

New paper out in Science Advances by lead author @mvermeuel.bsky.social 🧪 Surface temps drive strong seasonality in urban reactive carbon emissions doi.org/10.1126/scia... A joint project between the @dbm.bsky.social and @chemdelphine.bsky.social groups, in collab w/ @roseatmos.bsky.social group

UK contemporary sculptor known as Anna & the Willow creates nature-inspired sculptures made from rods of willow #womensart

Eternally grateful for the opportunity to continue doing something so ridiculous.

The colors on Salvia are so beautiful. I love the shades of blue and purple.

I love fall, so many gourds!

Autumn Drama Dana Irving 2023

I like that there are no adds here on Bluesky. It feels like one of the last parts of the internet where no one is trying to sell me things.

SCOOP: Top researchers at Columbia, Stanford, and others thought they were elected to elite scientific societies alongside Nobel laureates. The catch? The organizations are a sham. I spent the last month diving deep into a massive academic scam spanning continents, for @nature.com

Artist Selva Ozelli, whose exhibit Flags of Science CCL is on display as part of Art Meets Science at Lamont, has recently interviewed several of our amazing scientists, including Fola Kolawole, Sheean Haley, @roseatmos.bsky.social, Mike Steckler, Margie Turrin! Via TRVST: https://bit.ly/4hDkFrA

A group of 25 Fields Medalists, including myself, have made a joint declaration on Math and AI: mathandai.org . We welcome additional signatories. See also this article in the Economist announcing the declaration: www.economist.com/science-and-...

We are looking for a new PhD student to join our group in 2027! Interested in all the ways that oxidized nitrogen cycles in the atmosphere and affects air quality and climate? So are we! Details and link to apply are here: jobs.ethz.ch/job/view/JOP...

🧵CO₂ removal (CDR) is back in the news, but just because the UNEP report says we need CDR, it doesn't mean we'll have CDR. Many challenges will take decades of research and negotiation to solve. Here are some examples: Technological: We currently don't have any durable CDR method that scales.

Real Greek yogurt is amazing.

I'm in Crete for IGAC 2026 and I love that one of my favorite pieces of wall art that I saw on the walk to the conference center is a reproduction of an ancient fresco from the palace of Knossos!

Having a wonderful time at iCACGP-IGAC 2026 in Crete! The talks and posters have been great and I got up early enough to catch a mermaid sunrise!

Postdoctoral associate on indoor atmospheric chemistry, MIT Department of Civil and Environmental Engineering, on assessing the efficacy and impacts of commercial air cleaners. careers.peopleclick.com/careerscp/cl...

We had a tornado warning today at the start of my class. My room is the shelter for the building, so I ended up lecturing to ~300 students, faculty, and staff. Crazy first day!

Proposal: chemists should do these kind of press releases for experiments with uncertain/unconfirmed results just like physicists do "BREAKING: The the Chemist group might have done a catalysis. More research needed to confirm." [narrator: they just misinterpreted the NMR spectrum... again]

Millions of people rely on the information they obtain via a search engine corporation which just proved it would alter digital reality if instructed to do so by those in political power. That’s some crazy shit, Google.

I don't know what I did, but this should happen more often!

My research group is looking to hire a postdoctoral scholar. Come work with us. I've listed details on my site: annmariecarlton.com/postdoctoral...

I love fuzzy bees with their faces buried in flowers.

Dolly Parton was a national treasure. She was an inspiration to so many. Quite simply I will always love you, Dolly. Rest in peace.

So many of these folks are like “ooo we’re daring free-thinking mavericks” and it’s like nah man you’re just super racist

Beautiful fluffy Goldfinch grabbing her breakfast.

Here's a duck from last winter on ice at the botanical garden. The shadows make him look like he's levitating. #BirdOfTheDay theme is #Simple.

Summer Rush Katharine Burns 2025

Struck by the percentage of people signing on who are men, if guessing by names means anything (90% plus?). Also the percentage who are losers (1000% at least).

I have taken many pictures of perfect butterflies. The older ones are even more beautiful and impressive.