Nagissa Mahmoudi

'When authoritarians seize power, it is crucial to recognize courageous defenders of freedom who rise and resist,' the Norwegian Nobel Committee said as it announced Maria Corina Machado as the winner of the 2025 Nobel Peace Prize

Many sea stars begin life as young fairy-like creature (called a brachiolaria) that float through the open ocean. Eventually, a small star forms within them (here in yellow). The fairy-like brachiolaria sinks under the star’s weight, and the star pops out!
🎥@the_story_of_a_biologist (on Insta)

Thinkers, dreamers, doers: Here's who made the 2025 MacArthur Fellow list A cartographer, a composer, a neurobiologist, and a novelist are among the recipients of this year's "Genius Grants." Each Fellow will receive a no-strings attached award of $800,000.

A cartographer, a composer, a neurobiologist, and a novelist are among the recipients of this year's "Genius Grants." Each Fellow will receive a no-strings attached award of $800,000. n.pr/4h19OGf

A long ‘journey’ for Nobel chemistry winner born to Palestinian refugees Omar Yaghi, 60, a U.S. citizen born in Jordan, said he was raised with a dozen others in one room.

www.washingtonpost.com/world/2025/1...

Omar Yaghi, the new Nobel Laureate, was born to a Palestinian refugee family.

Architects of molecular cages win Chemistry Nobel Susumu Kitagawa, Richard Robson, and Omar Yaghi honored for developing metal-organic frameworks

This year’s #NobelPrize in Chemistry has gone to the architects of molecular “cages” that could be used for everything from carbon capture to drug delivery. https://scim.ag/4mTE1Z6

Interested in life’s co-evolution with planetary environments?
🌎🦠🧪

I'm looking for a postdoc to join my group at #McGill and happy to sponsor applicants for the TSI fellowship.

Please reach out if interested!

academicjobsonline.org/ajo/jobs/30777

The @uncchapelhill.bsky.social Department of Biology is searching for tenure-track Assistant Professor in Plant Molecular Biology. Chapel Hill is a wonderful place and Biology is an amazing group of people. To apply, see:
unc.peopleadmin.com/postings/307...

Earth scientists Maggie Osburn and Mia Tuccillo bag up plant samples in a rocky Greenland landscape, with an iceberg-spotted fjord and glacier-covered mountains in the background.

New paper! PhD student Mia Tuccillo has uncovered another big impact of past warming in Greenland: lakes lost oxygen for thousands of years and cyanobacteria took over 🦠 🧪 🦠. It's kinda yikes...
With collaborator @geobiomaggie.bsky.social (1/3)

Microbial Resuscitation and Growth Rates in Deep Permafrost: Lipid Stable Isotope Probing Results From the Permafrost Research Tunnel in Fox, Alaska Microbial growth is extremely slow within the first 30 days of thaw. Temperature may drive which taxa are active, but not growth rates Subsurface microbes preferentially produce glycolipids over ...

The vast majority of permafrost exists in the subsurface. What happens when this deep, ancient permafrost thaws? How fast does it take microbial communities to "wake up"?

This project now published in JGR, with @isotopes.bsky.social , @kopflab.bsky.social , et al., aims to address that question!

🌊 #biogeochemistry for the masses

A biogeochemical model available in #python

(h/t @geotraces.bsky.social )

www.geotraces.org/new-software...

Deep ocean microbes are starving but does feeding them fresh carbon make them eat the old stuff?

Our new study shows it doesn’t. The persistence of this carbon appears to come from its chemical stability, not from microbial starvation.

🌊🦠 🧪 #MicroSky #MarineSky

journals.asm.org/doi/epub/10....

Rice’s Masiello Honored as Fellow of the American Geophysical Union Carrie Masiello, the esteemed W. Maurice Ewing Professor of Biogeochemistry at Rice University, has been honored with election as a fellow of the American Geophysical Union (AGU), a prestigious recognition reserved for those who have made extraordinary contributions to Earth and space sciences. This accolade places Masiello among an elite group of scientists whose work has profoundly advanced our understanding of Earth systems, with only a fraction of AGU members ever attaining this distinction since the fellowship program began in 1962.

Rice’s Masiello Honored as Fellow of the American Geophysical Union

Carrie Masiello, the esteemed W. Maurice Ewing Professor of Biogeochemistry at Rice University, has been honored with election as a fellow of the American Geophysical Union (AGU), a prestigious recognition reserved for those who…

🚨 ‘Earth system engineers’ and the cumulative impact of organisms in deep time
sciencedirect.com/science/arti...

Honored to be among the long author list of this new paper out now in @cp-trendsecolevo.bsky.social that looks to bridge the ecosystem engineering and paleontological literature.

So you're a scientist about to face a government shutdown?

Have you considered becoming a rock star?

It's easy AND profitable! 🎸🧪

Let's list off five scientists who turned rockers:

Chunk the Bear gaining weight between July and September.

🐻🐻🐻🐻
It is finally here.
Fat Bear Week 2025.
🐻🐻🐻🐻

Vote for the fattest, portliest, chubbiest bear of Katmai NP (@fatbearweek.bsky.social). Some of these chonks weigh more than half a ton, and have gained over 100kg since July.

Who will win this year?

Voting is open: explore.org/fat-bear-week
🧪🌍🦊

It’s the woman’s fault that her kid has autism.

🚨 Job Alert! 🚨

We're hiring a Research Project Manager to join our #THRiVElab team at U. Manitoba.

📍 Winnipeg or Remote (in Canada)
💰 Up to $85k
🔗 Apply: www.umanitoba.ca/careers (#38881)
🌐 About us: www.thrivediscovery.ca/staff-positi...

Know someone perfect for this? Please boost or share! 🙏

🌱 Using ‘compelling’ methods, including #CryoET, researchers mapped spinach thylakoid membranes at single-molecule precision, revealing how photosynthetic complexes are organised and settling long-standing debates on chloroplast architecture.
buff.ly/j3TSIkn

Phylogenomic Analyses Reveal that Panguiarchaeum Is a Clade of Genome-Reduced Asgard Archaea Within the Njordarchaeia Abstract. The Asgard archaea are a diverse archaeal phylum important for our understanding of cellular evolution because they include the lineage that gave

Phylogenomic Analyses Reveal that Panguiarchaeum Is a Clade of Genome-Reduced Asgard Archaea Within the Njordarchaeia
#microbiology #archaea #evolution
@molbioevol.bsky.social
academic.oup.com/mbe/article/...

An Ice-Cold Octopus Nursery Could Help Expand Marine Protections Indigenous and Western scientists are working together to uncover biodiversity in the icy deep. They're getting some eight-armed help.

Two years ago, marine researchers discovered a rare deep-sea octopus nursery about 90 miles off Vancouver Island. Now, it could help create Canada’s second-largest marine protected area. 🐙

The official number of exoplanets has surpassed 6,000! And you can access data on all 6,007 of them right here at IPAC 📈 🪐

Watch the video & read all about the center of the exoplanet universe (also known as NExScI!) here:
www.ipac.caltech.edu/news/the-nas...

I got these many years ago. I had to throw out SO much food. They were so hard to get rid of. I still keep most of our pantry foods in glass jars to avoid them.

YouTube video by Scientific American Nodules: Deep-Sea Life Giver or Key to Our Energy Future?

After a long day of discussing future field work to study #DeepSeaMining, this short documentary was a welcome reminder of the why - there is still so much we don’t know about the deep sea! www.youtube.com/watch?v=1jcm...

An eosine methylene blue ager plate testing positive for a lactose fermenting bacteria by turning bright metallic green

Everyone look at my shiny bacteria that I grew in my microbiology lab.

Computational image analyst (m/f/d) The Max Planck Institute for Molecular Biomedicine in Münster, Germany, has an opening for a

My lab @mpi-muenster.bsky.social is looking for a computational biologist with a passion for imaging and spatial biology. A staff scientist position with long-term perspective! Apply and spread the word 🙏 jobs.mpi-muenster.mpg.de/jobposting/0...

Microbial exoenzymes catalyzed the transition to an oxygenated Earth Microbial exoenzymes, extracellular enzymes secreted to degrade complex organic polymers, are essential for recycling carbon and nutrients, thus sustaining primary productivity in todays oceans. Yet, ...

🚨New preprint from our lab!🚨

We trace the evolution of microbial exoenzymes and uncover their role in Earth’s oxygenation. By recycling nutrients, exoenzymes helped fuel cyanobacteria and set off feedbacks that sustained the long-term rise of O₂.

#MicroSky 🧪 🦠 🌎

www.biorxiv.org/content/10.1...

If you see headlines claiming NASA's found life on Mars - these are new studies of features in rocks which, if they were on Earth, look like the kind of thing caused by microorganisms. But they could very well - are most probably in fact - be caused by chemistry, not biology.

An article headline from HuffPost: An Oyster Farmer Sparks A Populist Fire In Maine’s Senate Race, Graham Platner’s rapid rise to a leading candidate to oppose Sen. Susan Collins is a direct challenge not only to her but to Democrats in Washington.

A revolt is exactly what this is.

Spending it is actually much worse.