Lightnews — Scholar-powered news

Cathy Sirour-Geoffroy @ktigeoffroysirour.bsky.social · 6d

@biodev-vlfr.bsky.social Ready for the "Fête de la science" 🐙🪼🔬🦠. Village des sciences Villeneuve-Loubet
@imev-mer.fr @sorbonne-universite.fr @cnrsbiologie.bsky.social

2 4

Reposted by Cathy Sirour-Geoffroy

Alexandra Delbot @alexandradelbot.bsky.social · Aug 27

La quasi-totalité des méduses mènent une double vie : fixées dans les fonds marins ou libres dans l’eau. Mais certaines ont échappé à ce cycle et passent toute leur vie à dériver. Selon une nouvelle étude, ces espèces dites holoplanctoniques ont colonisé l'Océan. Dériver pour mieux régner !

Le radeau des méduses : quand dériver permet de coloniser l’océan

La plupart des méduses mènent une double vie : fixées au fond, puis libres dans l’eau. Mais certaines ont échappé à ce cycle et passent toute leur vie à dériver. Selon une nouvelle étude, ces espèces ...

www.radiofrance.fr

2 23 85

Reposted by Cathy Sirour-Geoffroy

Joaquina Delas @joadelas.bsky.social · Aug 26

Check out the latest work by @dbenzinger.bsky.social and @jamesbriscoe.bsky.social !

Building gradients in space and time.

I am extremely biased but the Dec 15 issue of Dev Cell is 🔥🔥

James Briscoe @jamesbriscoe.bsky.social · Aug 26

Our latest: We developed a chemo-optogenetic system for precise spatiotemporal control of morphogen production. Using dual light + small molecule control of Sonic Hedgehog production, we recapitulated neural tube patterning in vitro & measured spread of Shh

🧵

www.sciencedirect.com/science/arti...

Investigating morphogen and patterning dynamics with optogenetic control of morphogen production

Morphogen gradients provide the patterning cues that instruct cell fate decisions during development. Here, we establish an optogenetic system for the…

www.sciencedirect.com

5 26

Reposted by Cathy Sirour-Geoffroy

eLife @elife.bsky.social · Jul 26

🪼 How did the animal body plan evolve?

This ‘fundamental’ study in Clytia sheds light on how Wnt3 coordinates both gene expression and planar cell polarity during axis formation, offering key insights into the origins of morphogenesis.
buff.ly/lLJ33VF
#DevBio

5 10

Reposted by Cathy Sirour-Geoffroy

New England Society for Microscopy @nesmicroscopy.bsky.social · Jul 21

🐙 This Octopus shifts from deep to active rest while "dreaming" for #MicroscopyMonday. REM‑like sleep (color bursts and twitches) filmed in real time by Horst Obenhaus @octoscience.bsky.social‬, currently a 2025 Whitman Fellow at @mblscience.bsky.social. #NESM

#Octopus #Neuro #SleepScience #MBL

15 210 870

Reposted by Cathy Sirour-Geoffroy

Michael Sars Centre @msarscentre.bsky.social · Jul 17

Researchers from @imev-mer.fr recently visited us for a workshop supported by the French-Norwegian mobility program Åsgard 🌊 Between seminars, lab demos and discussions, new ideas and plans for long-term collaborations emerged 🤩 Read more about this exciting partnership below ⤵️

Åsgard workshop sparks new collaborations at the Michael Sars Centre

Researchers from the Institut de la Mer de Villefranche and the Michael Sars Centre received support from the French-Norwegian mobility program Åsgard. Through seminars and discussions, participants l...

tinyurl.com

1 7 12

Cathy Sirour-Geoffroy @ktigeoffroysirour.bsky.social · Jul 13

🤩

Reposted by Cathy Sirour-Geoffroy

eLife @elife.bsky.social · Jul 13

🪼 How did the animal body plan evolve?

This ‘fundamental’ study in Clytia sheds light on how Wnt3 coordinates both gene expression and planar cell polarity during axis formation, offering key insights into the origins of morphogenesis.
buff.ly/e1Un958
#DevBio

13 49

Reposted by Cathy Sirour-Geoffroy

Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦ @dudinlab.bsky.social · Jul 8

Come and Join our Dpt in Beautiful #Geneva !

We are looking for a #Microscopy & #Image #Analysis expert to help all of us at the Dpt.

Marko Kaksonen @kaksonen.bsky.social · Jul 7

Hello microscopy and imaging experts and enthusiasts!
We are looking for a staff scientist to join us here in Geneva to work on microscopy and image analysis projects! See the link for the job announcement (in French and in English).

Please apply and/or repost!

jobs.unige.ch/www/wd_porta...

25 34

Reposted by Cathy Sirour-Geoffroy

Barone Lab @baronelab.bsky.social · Jul 7

This postdoc position is still open! Apply if you want to come work with us on asymmetric cell divisions in spiralian embryos! postdocs.stanford.edu/prospective/...

27 31

Reposted by Cathy Sirour-Geoffroy

Cnidarian developmental mechanisms group @clytia-vlfr.bsky.social · Jul 7

Interested in visiting Villefranche, Roscoff or Banyuls marine stations? The EMBRC-France (www.embrc-france.fr) 8th Call for Projects is open. Deadline Sept 19 for stays by end of June 2026. Up to 42 person-days per project are covered, with access to EMBRC-France services, accommodation & catering.

Accueil | EMBRC France

www.embrc-france.fr

2 3 10

Reposted by Cathy Sirour-Geoffroy

Rebecca R Helm @rebeccarhelm.bsky.social · May 5

This is a swimming sea slug. This type of slug, called a dendronotus nudibranch, can grow nearly a foot long in the Vancouver area where this was filmed. While they're often found on the seafloor, they can also fold their bodies to drift with ocean currents
📽️Marcelo Johan Ogata bit.ly/3a8lVQP

85 430 2.8K

Reposted by Cathy Sirour-Geoffroy

Laurent Formery @laurentformery.bsky.social · Jun 26

My first steps into paleontology!! 😀
Big thanks to @imranrahman.bsky.social for having me on this cool project to look at some fascinating echinoderm fossils ⭐

Imran Rahman @imranrahman.bsky.social · Jun 26

Delighted to share our paper in @currentbiology.bsky.social iology.bsky.social‬ with a palaeo-evo-devo perspective on the evolution of symmetry in echinoderms. Led by Steffi Woodgate with Frankie Dunn, @echinerd.bsky.social, @laurentformery.bsky.social & Sam Zamora
www.cell.com/current-biol...-5

A new Cambrian stem-group echinoderm reveals the evolution of the anteroposterior axis

Woodgate et al. describe a new bilaterally symmetrical echinoderm, Atlascystis acantha, from the Cambrian of Morocco. Comparisons of plate growth with other echinoderms reveal that Atlascystis possess...

www.cell.com

3 11

Reposted by Cathy Sirour-Geoffroy

Michael Sars Centre @msarscentre.bsky.social · Jun 26

We are thrilled to announce the launch of the Michael Sars Visitors Program! ✨🧪 To spark new connections, we are opening our doors to visiting researchers who wish to conduct a project in #SunnyBergen. Applications are open, help us spread the word!

Introducing the Michael Sars Visitors Program

The Michael Sars Centre is launching a Visitors Program designed to foster scientific exchange and collaborations across disciplines.

tinyurl.com

16 33

Reposted by Cathy Sirour-Geoffroy

Enrico D’Aniello @enricodanielloszn.bsky.social · May 25

PhD Call Stazione Zoologica Anton Dohrn Naples, IT.
Check out this call for a PhD position in my lab with Dr. Lionel Christiaen as an external supervisor and me as Director of the study. Deadline: June 14th www.szn.it/index.php/it...

5 6

Reposted by Cathy Sirour-Geoffroy

Astropierre @astropierre.com · Jun 1

À l'occasion de l'orage géomagnétique déclenché aujourd'hui par l'éruption solaire de vendredi dernier, le Centre Opérationnel de Météorologie de l'Espace des Alpes @comea-sw.bsky.social inaugure une nouvelle carte de prévision de visibilité d'aurore.

Comea @comea-sw.bsky.social · May 31

Où pourrait-on voir des aurores demain ?
Il suffit de regarder notre nouvelle carte.

🚩 L'orientation magnétique et l’horaire sont cruciales. le scénario ici est assez favorable, mais peut changer. Une mise à jour sera faite dès détection dès l'arrivée du vent solaire. 🛰️

2 25 76

Reposted by Cathy Sirour-Geoffroy

Laurent Formery @laurentformery.bsky.social · May 31

Our brittle star patterning study is now out at EvoDevo! 🥳
doi.org/10.1186/s132...

@lowelab.bsky.social

20 58

Reposted by Cathy Sirour-Geoffroy

Chema Martin @chemamd.bsky.social · May 21

‼️10 days left to register and submit your abstract!! Come and join us to help relaunch the UK EvoDevo meetings. An exciting day with friends and good science!

Register and submit your abstract here 👉🏻 eshop.qmul.ac.uk/conferences-...

1 10 11

Reposted by Cathy Sirour-Geoffroy

Eric Lagadec @ericlagadec.bsky.social · Apr 26

A 8500 années-lumière de nous, dans un des bras de notre Galaxie, la Voie Lactée, on peut trouver un endroit hallucinant, peut être le plus beau connu de l'Univers. Pas facile d'y partir en week-end, mais ça vous dit d'aller y faire un tour?
Je viens d'en faire cette image

Thread👇
Bon voyage!

18 120 720

Reposted by Cathy Sirour-Geoffroy

Sébastien DARRAS @darras-sebastien.bsky.social · Apr 23

Looking for a post-doc?

In the frame of the #MSCA-PF 2025 program at @sorbonne-universite.fr , the #DEEVA team (biom.obs-banyuls.fr/presentation...) from @biom-banyuls.bsky.social and @obs-banyuls.fr in #WindyBanyuls proposes a research project (www.sorbonne-universite.fr/sites/defaul...).

1 11 13

Reposted by Cathy Sirour-Geoffroy

Eric Lagadec @ericlagadec.bsky.social · Apr 15

Encore une image hallucinante du JWST, qui nous révèle la mort de deux étoiles !

Astronomy Picture of the Day 🪐 @apod.shinyakato.dev · Apr 15

🔭 Planetary Nebula NGC 1514 from Webb

Image Credit: NASA, ESA, CSA, M. E. Ressler (JPL) et al.; Processing: Judy Schmidt

apod.nasa.gov/apod/ap25041...

A starfield is dominated by a multi-colored figure 8 in the middle, titled on a diagonal. The outsides of the nebula appear light colored, while the inside shows complex structure tinted red and purple. Please see the explanation for more detailed information.

10 36 250

Reposted by Cathy Sirour-Geoffroy

Bookshelfie @bookshelfie.bsky.social · Apr 12

#booksky

19 240 2.2K

Reposted by Cathy Sirour-Geoffroy

CNRS @cnrs.fr · Apr 11

#Communiqué 🗞️ 14 articles scientifiques révèlent l'ampleur de la pollution par les 𝐦𝐢𝐜𝐫𝐨𝐩𝐥𝐚𝐬𝐭𝐢𝐪𝐮𝐞𝐬 en Europe 🇪🇺. La Mission Tara Microplastiques (2019) a étudié l'origine et les flux de la pollution plastique dans 9 fleuves européens.

👉 www.cnrs.fr/fr/presse/mi...

14 33

Reposted by Cathy Sirour-Geoffroy

Eric Lagadec @ericlagadec.bsky.social · Apr 8

Cette image vous présente le reste de l'explosion d'une étoile en supernova, dont la lumière nous est parvenue il y a ~1000 ans. C'est une combinaison d'images en rayons X, infrarouge et en radio. Au coeur de W49B se trouve peut être le trou noir le plus récent de la galaxie.

Du gaz multicolore autour d'une étoile morte

9 58 360

Reposted by Cathy Sirour-Geoffroy

Zebrafish Rock! @zebrafishrock.bsky.social · Apr 8

“We report a novel imaging technique using a recently developed clearing reagent called LUCID that makes it possible to capture the complete cellular-resolution 3D structures of larval and juvenile zebrafish.”

New work from Weinstein Lab at NIH 🐟

Figure 1 taken from preprint from Weinstein Lab. A,C brightfield image of an zebrafish larva. B,D LUCID cleared zebrafish larva. E, F images of the brain with and without LUCID clearing.

17 59