Sabina Raducan
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raducan.bsky.social
Sabina Raducan
@raducan.bsky.social
49 followers 48 following 11 posts
PostDoc @unibern. Planetary Scientist. Planetary defender.
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Reposted by Sabina Raducan
spacemarschall.net
Are you looking for a postdoc position working on asteroids and comets? Would it help if it's in a beautiful place in southern France? If yes, then consider applying to the following position of my colleague Benoit Carry at the Observatory in Nice:
euraxess.ec.europa.eu/jobs/402212

#planetSci
Post-doc on properties of Solar system small bodies
The small bodies of our Solar system (comets and asteroids) are the remnants of the building blocs that accreted to form the planets. The suite of events that occurred during planet formation left pri...
euraxess.ec.europa.eu
January 21, 2026 at 4:38 PM
Reposted by Sabina Raducan
issibern.ch
Scientists around ISSI's @raducan.bsky.social reveal that the tiny asteroid moon Selam did not form in one go:
it is a “puzzle” assembled from at least four slow-speed moonlets that gently stuck together over time.
🧩🛰️

See more in the Press Release: www.issibern.ch/asteroids-mo...
PRESS RELEASE
Explore the asteroid Dinkinesh’s tiny moon Selam and how it has been formed from multiple low-speed collisions between small moonlets.
www.issibern.ch
January 7, 2026 at 9:16 AM
Reposted by Sabina Raducan
issibern.ch
🚀 Big year ahead for space science at ISSI! 🌌

Let’s start with introducing our—and your—new ISSI Science Programme Manager, Sabina Raducan! 😊

We asked her a couple of questions so you get to know her better already:
www.issibern.ch/introducing-... 🔭
Introducing Dr Sabina Răducan: ISSI’s New Science Programme Manager | International Space Science Institute
ISSI welcomes our new Science Programme Manager, Raphael Marschall!
www.issibern.ch
January 5, 2026 at 8:39 AM
raducan.bsky.social
New paper out 🥳
Using data from #NASA #Lucy mission and a series of numerical simulations, we show that #Selam, the moon of #Dinkinesh, likely formed through a series of at least four low-velocity collisions between similarly sized moonlets. www.nature.com/articles/s41...
Multiple moonlet mergers as the origin of the Dinkinesh-Selam system - Nature Communications
Space missions imaging small asteroid moons revealed the variety in shapes. Here, the authors show that repeated low-speed collisions can explain the shape of Selam, which is the smaller component in ...
www.nature.com
December 12, 2025 at 11:07 AM
Reposted by Sabina Raducan
spacewhalerider.com
Choosing to go to LPSC now that they've doubled down on banning any content about making the field a better place for underrepresented scientists? That would be rewarding this behavior and make the field even more unsafe! Just a thought!
Abstract Submission Abstract submission deadline: January 6, 2026, 11:59 p.m. U.S. CST No new or revised abstracts will be accepted after January 6. Abstract Submission Criteria All submitted abstracts must comply with Administration Executive Orders. Any non-compliant abstracts will be removed from consideration for the conference program.
November 18, 2025 at 9:53 PM
Reposted by Sabina Raducan
asrivkin.bsky.social
Always happy to repost #DARTMission content, and happy to point to the Astrobites article discussing Tony Farnham's new paper therein!
coreyspowell.bsky.social Corey S. Powell @coreyspowell.bsky.social · Nov 19
3 years ago, NASA crashed the DART spacecraft into an asteroid at 22,000 kilometers per hour. The event changed the asteroid's orbit and tilt & sent it tumbling.

A nearby cubesat captured these remarkable images of the asteroid immediately after the impact. 🧪🔭

aasnova.org/2025/11/03/s...
November 19, 2025 at 4:20 AM
Reposted by Sabina Raducan
planetdr.bsky.social
Today in examples of how obeying in advance gets you nothing.

LPI took down all our DEIA related abstracts to avoid pissing off NASA.

And NASA just killed LPSC.
Request for Information: Conference on Lunar, Planetary and Space Sciences Decision Made Not to Solicit Partnership Proposals Number: NNH25ZDA006L Short URL: https://go.nasa.gov/LPSS24RFI The Science Mission Directorate's (SMD) Planetary Science Division(PSD) is updating its Community Announcement regarding future Lunar, Planetary and Space Sciences Conferences that was published under Number: NNH25ZDA006L as a special notice on SAM.gov. In November 2024, NASA issued a Request for Information (RFI) NNH25ZDA006L to gauge interest in a partnership to organize a conference on lunar, planetary, and space science. Based on the response to this RFI, NASA gave an update on progress towards a future release of an Announcement for Partnership Proposals (AFPP) in February 2025. This email notice is to inform the community that, at this time, NASA has decided not to pursue an AFPP as described in the RFI and the "Questions and Answers for the LPSS RFI posted February 10, 2025 (pdf)". The Planetary Science Division is studying options for future support of community-led and community-driven
June 4, 2025 at 3:05 PM
Reposted by Sabina Raducan
spacemarschall.net
I'm amazed at what people do with the publicly available data of Lucy's encounter of asteroid (52246) Donaldjohanson!

Here is a 3D model made by Doug Ellison (@dougellison.bsky.social) from the images in the released GIF. Wonderful! 🤩

sketchfab.com/3d-models/as...

#PlanetSci #SciComm 🧪
Asteroid DJ from Gif - 3D model by Doug Ellison (@djellison)
Data from GIF posted here : https://science.nasa.gov/image-article/nasas-lucy-spacecraft-images-asteroid-donaldjohanson/ credit NASA/Goddard/SwRI/Johns Hopkins APL - Asteroid DJ from Gif - 3D model by...
sketchfab.com
April 23, 2025 at 2:31 PM
raducan.bsky.social
Why is academia so messed up? I just want to do my science without being constantly told how bad and useless my science is :( #justanotherrejection
March 24, 2025 at 2:21 PM
Reposted by Sabina Raducan
jtuttlekeane.bsky.social
Sabina Raducan—The DART impact provided an opportunity to calibrate models of asteroid properties and dynamics. They used this to study how asteroid moons, like Selam (the moon of Dinkinesh observed by the Lucy mission), formed. #LPSC2025
A photograph of a sketch that I did summarizing Sabina Raducan’s talk from LPSC 2025. The sketch is in my conference notebook and is done on a roughly 5 x 7” page in pencil and pen. The sketch shows the Didymos and Dinkinesh asteroid and their satellites. these two asteroids are similar and have recently been explored by NASA and ESA missions. Didymos is in ellipsoidal moon with a nearby similarly ellipsoidal satellite Dimorphos. Dinkinesh is a top shaped asteroid shown in the middle with a bilobate moon, Selam, that orbits further away. For each of the different asteroid systems, I have drawn the different spacecraft that have flown by, into or will soon arrive, including the dart mission which impacted Dimorphos, along with the light LICIACube small sat; the Hers mission, which will arrive in 2026 with two small sets Milani and Juventas; and Lucy, which flew by Dinkinesh in 2023. The authors use the DART impact to calibrate their SPH simulations of the formation of asteroid moons via mergers of smaller satellites. They hypothesis that Selam formed from the merger of four moonlets. they point to the bilobafe shape and the ridges on both bodies as evidence, speculating with the ridges formed from mergers of satellites.
March 17, 2025 at 12:53 AM
Reposted by Sabina Raducan
esa.int
Just in! 📸 The first images from yesterday’s #HeraMission flyby of Mars and its moon Deimos. 👇 www.esa.int/Space_Safety...
March 13, 2025 at 12:24 PM
Reposted by Sabina Raducan
strictlychristo.bsky.social
Basel, Switzerland
March 12, 2025 at 6:39 PM
Reposted by Sabina Raducan
operations.esa.int
Our Hera spacecraft is flying past Mars! Check out this real-time simulation of what Hera is seeing right now, and tune in to the @esa.int YouTube channel tomorrow at 11:50 CET to see us present the real images!
www.youtube.com/watch?v=KILq...
Real-time simulation of Hera’s Mars flyby
YouTube video by ESA Extras
www.youtube.com
March 12, 2025 at 12:13 PM
Reposted by Sabina Raducan
josefaschbacher.esa.int
🔔 SUCCESS! ✅ ESA's Hera Mission orchestrated a successful Mars flyby, using the red planet’s gravity to swing it towards its destination asteroids, while also testing its instruments. @esa.int will unveil flyby photos and debrief the operation tomorrow 👇https://www.youtube.com/live/cHiASEowrio
March 12, 2025 at 4:07 PM
Reposted by Sabina Raducan
revesdespace.bsky.social
🛰️🔴 #HeraMission de l'ESA à 2,1 millions de km de #Mars, avant son survol rapproché le 12 mars
March 9, 2025 at 5:15 PM
Reposted by Sabina Raducan
esa.int
The probability that asteroid 2024 YR4 might impact Earth in 2032 has risen to 2.8%.

This means that it has surpassed the chance of impact briefly held by the much larger asteroid Apophis back in 2004.

@esaoperations.esa.int ☄️🔭
Uncertainty region of the asteroid 2024 YR4 shown in orange with the Earth shown in blue.
February 19, 2025 at 2:46 PM
Reposted by Sabina Raducan
asrivkin.bsky.social
The #DARTMission had key contributions from people of many genders. Since it's an ESA #WomeinInScience post I'll specifically call out (a few of) our European women contributors like @agastro.bsky.social, @raducan.bsky.social, Naomi Murdoch, Julia de Leon, and LICIACube PI Elisabetta Dotto! 🔭 🛰️ 🧪
science.esa.int ESA Space Science @science.esa.int · Feb 11
💫🎉 Behind every successful ESA space mission, there's a woman. Behind the ESA & NASA Solar Orbiter mission, there are more than a hundred of them!

Join us in celebrating them today, on international day of women and girls in science!
#WomenInScience #WomenInSTEM
🔭🧪

www.esa.int/ESA_Multimed...
Collage of women who contributed to the ESA & NASA Solar Orbiter mission
February 11, 2025 at 1:53 PM