🥇 The 2025 Europlanet Prize for Public Engagement has been awarded to Red de Estudiantes Colombianos en Astronomía Educación, a Colombian non-profit network of volunteers that aims to bring science to schools and communities across Colombia 👉 www.europlanet.org/europlanet-p...

✨ News from #EPSCDPS2025: JWST Reveals Dark Beads and Lopsided Star Patterns in Saturn’s Atmosphere, in a new study by @northumbriauni.bsky.social: bit.ly/epscdps_jwstsaturn

🪐 BREAKTHROUGH: Researchers have discovered mysterious dark beads in Saturn's atmosphere using the James Webb Space Telescope. Professor Tom Stallard and an international team have revealed complex structures in Saturn's sub-auroral ionosphere never seen before. www.northumbria.ac.uk/about-us/new...

✨ #EPSCDPS2025 News: Mars’s Chilly North Polar Vortex Creates a Seasonal Ozone Layer, by Kevin Olsen et al. (@ox.ac.uk): bit.ly/epscdps_marspole

✨ #EPSCDPS2025 News: Planets Without Plate Tectonics and too Little Carbon Dioxide Could Mean that Technological Alien Life is Rare. New study by Manuel Scherf and Helmut Lammer from Austrian Academy of Sciences: bit.ly/epscdps_technosign

Presented at #EPSCDPS2025 in Finland! 🚀 “The low-friction and viscous detachments drive deformation on Mars”. Our study shows how weak detachments shape tectonic deformation in the Tharsis region, offering new insights into Martian lithosphere dynamics. #PlanetaryScience #Mars #Geodynamics

The grand finale! 😁 #pancakes #EPSCDPS2025

phew, almost made it to the end of #EPSCDPS2025. Not gonna lie, I think we're all flagging here towards the end 😅 Looking forward to the pancakes(!) at the farewell event and then crashing. #EPSCDPS

It's the last day of #EPSCDPS2025! We hope everyone had a great time! We have one more talk today @ 3pm: Nader Haghighipour will present "Effects of secular resonances on the dynamical evolution and orbital architecture of planetary systems in binary stars" in room Neptune. Abst:

Adding to the collection of job-searching slides :D (Again, slightly edited to remove some contact information) #EPSCDPS2025

Cole Gregg explores whether interstellar material might come from circumstellar debris disks (it probably can!), and if so, where that material might come from and what would be the physical characteristics thereof #epscdps #epscdps2025

John Forbes: according to a model based on stellar populations, our galaxy contains a tapestry of streams of interstellar objects (ISOs) as illustrated in this still from a video that has been shown repeatedly in this ISO session #epscdps #epscdps2025

Not sure how many in #planetaryscience are here: Riccardo Pozzobon tragically passed away in Alaska. One can give a hand to his family: buonacausa.org/cause/riccar... Tributes/info: @europlanetmedia.bsky.social www.europlanet.org/in-memory-of... @esa.int blogs.esa.int/caves/2025/0...

#EPSCDPS2025 : Interesting talks by Xuan Li (collaboration with Richard Chatterjee) on revising cosmic shoreline to incorporate molecular weight, and by Erik Meier Valdes on what has been learned so far from the Hot Rocks survey. (Most interesting is that LHS1478b has a tentative hint

Yukun Huang derived explicit expressions for the drift and diffusion coefficients of the normalized orbital energy of gravitational scattering of planetesimals by a planet. These equations are analytically derived, universal, and eco-friendly. #EPSCDPS2025

Close encounters of the average kind: Yukon Huang explores an analytic model of interstellar objects are scattered out of their planetary systems #epscdps #epscdps2025

Rosemary Dorsey - giving a thesis talk on predictions of the ISO (interstellar object) yield with Rubin Observatory - Most of the results presented are in this nice paper iopscience.iop.org/article/10.3... #EPSCDPS2025

At #EPSCDPS2025 I've met @plutokiller.com, who discovered Eris and proposed Planet Nine! I've already interacted with him for my book about missing planets, but it has been a pleasure to meet him by person!

Have interstellar objects ever hit Earth? No confirmed instances based on fireball statistics but intriguing hints. Dusan Marčeta explores the possibilities with a simulation and it could happen! #epscdps #epscdps2025

#EPSCDPS2025 : Now at the Cosmic Shoreline session, co-chaired by Jake Taylor (Oxford Glasstone fellow) and Richard Chatterjee (Oxford PCDgroup doctoral student finishing soon #proudadvisor ) . This session deals with the question of when a planet can retain an atmosphere.

Rosemary Dorsey reviews a simulation of the interstellar objects that NSF-DOE Rubin Observatory might reveal - how many, what their characteristics may be (maybe 6-51 objects - hard to detect!) @vrubinobs.bsky.social #epscdps #epscdps2025

Ivano Bertini presents a new phase curve for cometary dust comae - paper at www.sciencedirect.com/science/arti... (under a pay wall so you'll need institute access) #EPSCDPS2025

#EPSCDPS2025 Soon the second GEOASTRONOMY session will be starting. In this session, among other interesting talks, Oxford PCDgroup postdoc Claire Guimond will talk about the expectation of ubiquitous CO2 sources on rocky planets. I will give my talk on subNeptunes as rockyworlds,

Hearing about the very cool Exoclock project, which has more than 10000 amateur observations of transiting exoplanets - hugely important to keeping track of our known planet population: www.exoclock.space #EPSCDPS2025

It's the final day of #EPSCDPS #EPSCDPS2025 (already! How do conferences seem to be both years of your life, and over in a flash?). Once again my morning schedule is a mess with talks in 3 parallel sessions I want to see 😅 #comets, DART, interstellar objects and some icy moons stuff

Keynote lecture "Keeping Time for Ariel: a global collaboration to preserve the transit ephemerides of a thousand worlds" by Gemma Domènech Rams, Montsec Observatory #EPSCDPS2025

Beginning the last day for this year #EPSCDPS2025! Morning briefing with Niamh Shaw ✨️

Most Finnish day: Suomenlinna, Fazer liquorice, and heavy metal #EPSCDPS2025 #EPSC2025

#EPSCDPS2025 I had intended to not do too much microblogging in this meeting, since it is a bit of a distraction for me, but there has been so much exciting stuff going on I couldn't resist the temptation to share. Hope y'all don't mind! And there will be more Friday morning, incl. my own talk.

Ania Łosiak introduced the plans to build a new educational center in Morasko, Poznan, where a very rare strewn field of craters is located. impakt-morasko.pl #EPSCDPS2025

Spaargaren: Research was just accepted last Friday and is available on arxiv arxiv.org/abs/2509.03724 #epscdps2025

ISSI Programme Manager, Raphael Marschall @spacemarschall.net, giving his #EPSCDPS2025 presentation about comets and what they tell us about the formation of the proto-solar disk. 🤩

#EPSCDPS2025 : Following a talk on Pellissard on the effect of fast magma ocean freeze out on mantle water retention on Venus (related to Harrison Nicholls' recent paper on convective shutdown and M.O. freeze-out time) Lena Noack is talking about CO-rich atmospheres arising from M.O. interactions.

Repin' #OpenScience (and @iaacsic.bsky.social !) at #EPSCDPS #EPSCDPS2025 #PlanetaryResearch

Proud advisor at #EPSCDPS2025! Great talks and posters Emily, Louis, Keren and Vanesa 😊👏🏼!!

Are you a planetary scientist? Join Europlanet! #EPSCDPS2025

To support Riccardo's wife and son in this unimaginably difficult time, his friends and colleagues at the University of Padova have set up a donation fund: www.europlanet.org/in-memory-of...

A very succinct summary of Christian's talk today at #EPSCDPS2025 on our work studying the effects of perchlorates on meteoritic organics 👇

Some recreational rock hunting during lunch at #EPSCDPS2025.

Big buzz at #EPSCDPS2025 around the Vera Rubin Telescope 🔭 It’s now survey-ready and delivering thousands of alerts per day on transients, asteroids, and supernovae. In 10 years, it could uncover 5–6 million asteroids.

#EPSCDPS2025 : I am now at the 15:00 GEOASTRONOMY session, on what determines chemical composition and thermochemical evolution of planets. I won't try to tell you about everything, but will flag a few things. Right now Georgios Perdikakis is talking about stellar nuclear processes that destroy

There are several more presentations at #EPSCDPS2025 on the case of #2024YR4: meetingorganizer.copernicus.org/EPSC-DPS2025.... For those unaware: 2024 YR4 will not impact Earth, but has a chance of impacting the Moon in 2032. The next data expected will be by @asrivkin.bsky.social et al. in 2026.

Catching up with studies of our old friend 2024 YR4, the asteroid that briefly reached a few percent chance of hitting the Earth, before new observations came in. Still has a 4% chance of hitting the Moon in 2032; new observations expected next year and in 2028. #EPSCDPS2025

Haiyang Wang is up now to speak on Devolatilization during rocky planet formation: Bridging theories and observations #epscdps2025

There are ore-grade nickel deposits in Neretva Vallis, near Jezero crater, Mars. #EPSCDPS2025

Are you an early career? This message is for you! #EPSCDPS2025

Be aware, VOLCANOES ON MARS, VOLCANOES ON MARS... or maybe not... come to chat with me about it tonight to our poster F15! #EPSCDPS2025

Katherine de Kleer et al. describe a survey of large main-belt asteroids in the mid-IR for #EPSCDPS2025: meetingorganizer.copernicus.org/EPSC-DPS2025... They find very small grain sizes and high porosity in the uppermost few wavelengths of their targets; and some interesting lab work to compare to.

The presence of perchlorate alters organic compounds, but does not erase them - laboratory experiments on C12 acids #EPSCDPS2025

Also, from earlier in the session: random @jtuttlekeane.bsky.social siting: #epscdps2025