Baptiste Journaux
@bjour.bsky.social
Assistant Prof in Planetary mineral physics at UW Earth and Space Science department| icy ocean worlds | ice(s) physic | free diving | www.SeaFreeze.org
Largest group picture ever taken by someone. Also Venus in the upper left
Catch SkyMapper CEO and @setiinstitute.bsky.social Director of #citizenscience @allplanets.bsky.social at “Eyes on Earth & Space: Breaking Through Complex Problems,” hosted by the French-American Chamber of Commerce Pacific Northwest in Seattle on Mar 16.
Very exciting new result we were able to help a bit with. Among many other things it is possibly the first geophysical detection of high pressure ices, and the first real world observation of the cenotectic.
Nature@nature.com · 8mo agoNature research paper: Titan’s strong tidal dissipation precludes a subsurface ocean go.nature.com/4s061hm
What a year! Very grateful for the recognition of all the hard work accomplished by our team at UW and abroad over the last few years by the IAPWS. More exciting things to come very soon!
Imaging Ganyemede’s Interior using Tides? 🛰️ Here, we propose measuring Ganymede’s response to tidal intercations with Jupiter using JUICE gravity data. In doing so, we can (maybe) tease out shell thickness variations, which would indicate a convecting ocean. Read more at: doi.org/10.1029/2025...
The Moon's nearside mantle is a giant volcano? 🌋 In this study, we infer a 100-200 C temperature anomaly in the Moon's nearside mantle. This anomaly suggests that geologic activity which formed the mare 3-4 billion years ago is still active today. nature.com/articles/s41...
@uwess.bsky.social's @bjour.bsky.social is uncovering how the "cenotectic" could reshape our search for life on icy moons. Journaux and @tamu.bsky.social's Matt Powell-Palm dive into extreme environments, and what they reveal about more than just planetary science. ess.uw.edu/2025/03/unlo...
Unlocking the secrets of icy moons: how the ‘cenotectic’ could revolutionize the search for life beyond Eartharrowarrowarrowarrowarrowarrow
ess.uw.edu
🚀 As NASA’s Europa Clipper embarks on its 5.5-year journey to Europa, a new study in Nature Communications led by UW planetary scientist @bjour.bsky.social reveals groundbreaking research that could revolutionize the search for habitability in our solar system and beyond. Read the full story👇
Unlocking the secrets of icy moons: how the ‘cenotectic’ could revolutionize the search for life beyond Eartharrowarrowarrowarrowarrowarrow
ess.uw.edu
Undergrads I mentor are seeking PhD programs. Grad students I work with are looking for postdoc positions. Postdocs like me are hoping to become faculty. Without federal support, many of these dreams will evaporate. It's alarming and depressing to watch so many doors close around us.
Hiring freezes, fewer grad students: Funding uncertainty hits colleges
Universities are tightening their belts and reducing graduate student enrollments to steel themselves for potential Trump administration funding cuts.
washingtonpost.com
We are experiencing an assault on science unparalleled by anything I’ve seen in my life. It’s not one issue or another anymore, the entire institution is under attack by the most powerful individuals in the country. This Friday, where will you be? standupforscience2025.org
STAND UP FOR SCIENCE
March 7, 2025. Washington DC and nationwide. Because science is for everyone.
standupforscience2025.org
Stand Up for Science!@standupforscience.net · 2y agoWelcome to the Bluesky account for Stand Up for Science 2025! Keep an eye on this space for updates, event information, and ways to get involved. We can't wait to see everyone #standupforscience2025 on March 7th, both in DC and locations nationwide! #scienceforall #sciencenotsilence
For anyone disappointed by 2024 YR4's disappearing threat please remember that even at its peak of ~3% chance it still had a negative rating on the Palermo scale. 1/
Anyway, "GenAI can inhibit critical engagement with work and can potentially lead to long-term overreliance on the tool and diminished skill for independent problem-solving" bsky.app/profile/keta...
Ketan Joshi@ketanjoshi.co · 2y agoMicrosoft's own research confirms something that was already pretty obvious: relying on a text generating machine to come up with answers erodes critical thinking, and is a method favoured by those who never liked doing critical thinking in the first place advait.org/files/lee_20...
To understand why the probability of impact was increasing in recent days and is likely to drop to 0 in the next few days/weeks it is important to realize that it was mostly driven by the size of the 1sigma uncertainty which diminished with better observations while earth was still inside it.
Ned Wright@mapping3k.bsky.social · 2y agoUpdated 2/19/25: much better with new data moving the estimated time of closest approach away from impact and the uncertainty reduced, so there is a considerable gap between the 1-sigma errorbar and impact for the first time.
New results from several of my colleagues in the Planetary Interiors and Geophysics group at JPL (which we lovingly refer to as PIGS).
Eos@eos.org · 2y agoDoes Callisto host an ocean deep beneath its icy exterior? It’s looking more and more likely. New research from @coreyjcochrane.bsky.social, @stevendvance.bsky.social, @lukeliuzzo.bsky.social in @aguadvances.bsky.social. eos.org/research-spo...
This video by @hankgreen.bsky.social covers why the Galilean moons are so amazing. I love Pluto too, but #Io, #Europa, #Ganymede and #Callisto are top tier Solar System objects. 🧪🔭 #Astronomy #Science #Geology #PlanetaryScience #Space Shoutout to the Europa Clipper: science.nasa.gov/mission/euro...
You're Wrong About Pluto
YouTube video by hankschannel
youtu.be
Something important to understand about how science is funded in the US
Mark Panning@markpanning.seismology.space · 2y agoWhat’s the most expensive part of science grant budgets? People. Grants pay for the scientists, engineers, and technicians that make science happen. Cutting off existing grants doesn’t mean we can’t buy a beaker. It means we can’t pay rent.
What's it like presenting your research to 25,000 scientists? ESS PhD student Haskelle White-Gianella shares an insider's view on her first AGU conference, what it's like giving a talk to the AGU scientific community, and making connections for her career and future as a planetary scientist! 🪐🌎
UW College of the Environment Grad Student Experience at AGU24
YouTube video by UW College of the Environment
youtu.be
Inkcap is not a bad one, but I wish I was on the Hydnellum peckii server… 🍄🟫🦷
Saimi Hanma ⚔️ サイミ #InverteFest Aug 25-31@saimihanma.bsky.social · 2y agoDid you know we're all placed onto different Bluesky servers, and they're named after mushrooms?? You can find out what mushroom server you're on by looking yourself up on Clearsky clearsky.app I'm team oyster mushroom. 🦪🍄
Elena & Topher now have a gofundme: gofund.me/153d27e6. Please help if you can!
Donate to Help the Amador-French Family Rebuild After the Eaton Fire, organized by Danielle Mahrer
Thank you so much to everyone that has already contributed so… Danielle Mahrer needs your support for Help the Amador-French Family Rebuild After the Eaton Fire
gofund.me
James Tuttle Keane@jtuttlekeane.bsky.social · 2y agoMy friends (and amazing planetary scientists / geologists) Elena & Topher Amador-French lost their home last night in the Eaton Fire. They had to flee with minutes warning. If you’re able, please donate to them and their family. Venmo: Elena-Amador.
Elena and Topher are amazing people and old friends from Seattle before they moved to California. If you can help, consider donating, they lost their house yesterday. What an horrible tragedy for so many folks.
James Tuttle Keane@jtuttlekeane.bsky.social · 2y agoMy friends (and amazing planetary scientists / geologists) Elena & Topher Amador-French lost their home last night in the Eaton Fire. They had to flee with minutes warning. If you’re able, please donate to them and their family. Venmo: Elena-Amador.
#2683 ==-- Liquid's last refuge One universal melting Anchors life's promise ==-- See you in the woodlands in March!
The cenotectic concept offers a new framework for assessing liquid stability on icy moons, aiding the search for life in extreme environments like Jupiter's Europa. doi.org/g8wf9t
Cenotectic concept redefines search for life on icy worlds
As NASA's Europa Clipper embarks on its historic journey to Jupiter's icy moon, Europa, Dr. Matt Powell-Palm, a faculty member at Texas A&M University's Department of Mechanical Engineering, has unveiled research that could transform our understanding of icy ocean worlds across the solar system.
phys.org
Incredibly excited to annonce the publication of our new experimental thermodynamic work at high pressures with the definition of a novel thermodynamic invariant point: The Cenotectic (κ) nature.com/articles/s41...
On the equilibrium limit of liquid stability in pressurized aqueous systems - Nature Communications
The authors define the cenotectic — the low-temperature stability limit for a liquid under arbitrary thermodynamic conditions — and measure it for several aqueous solutions of relevance to extraterres...
nature.com
How big is Dragonfly? Bigger than most think! (At least me). Was able to hold one of the test blades, and visualize the full scale virtual model. It's close to the size of a mini-van / SUV. What an amazing mission!
Amazing new images of the moon Io have come down from the Juno spacecraft! This one shows the volcanic moon of Jupiter from only 2,800 kilometers away, which is the closest look we’ve gotten of Io since over 20 years ago. Check out all those volcanoes!!!! NASA/JPL-Caltech/SwRI/MSSS/Kevin M. Gill
