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Dr. Raphael Marschall

@spacemarschall.net

Associate Professor of Experimental Physics at the @unibe.ch Co-I of ESA's Comet Interceptor, collaborator on NASA's Lucy and ESA's Rosetta missions. www.spaceMarschall.net (he/him)🇨🇭🇺🇸🇫🇷 #asteroids #comets #protoplanetarydisks #planetaryScience 🧪🔭🚀🛰️☄️

952 Posts4285 Follower372 Folgt
Elise Cutts@elisecutts.bsky.social · yesterday

There's a missing rung on the academic career ladder in Austria and Germany. Historically there wasn't a position like assistant professor or lecturer, so the jump from postdoc to professor was — and mostly still is — huge. Between 70% and 80% of academics in Austria don't have permanent jobs.

Academics in Germany and Austria are stuck in job limbo

Also: Montana's "right to try" law for experimental cures, UK science gets reshuffled, a university sues Anthropic over patents, and more from last week

reviewertoo.com

Dr. Raphael Marschall@spacemarschall.net · last wk.

We are used to seeing weird shapes of small asteroids, but this is next level! look at the shape of 44 Nysa from Minker et al. This is 75 km volume-equivalent diameter object! Also it has a satellite! #planetSci 🧪

Residuals of R-band images of the Nysa system on 2026- 02-15 after processing with the blind deconvolution method of Appendix A.3. The position of the satellite is marked with a pink arrow. To improve the S/N, the deconvolution residuals were av- eraged with a a ±5 frame sliding window. To provide scale, the primary has been superimposed. An extended video version of this figure and the same processing for the 2026-03-21 dataset is available online. Source: https://arxiv.org/pdf/2607.25786
arXiv astro-ph.EP Earth and Planetary Astrophysics@astrophep-bot.bsky.social · last wk.

Kate Minker, et al.: Unmasking (44) Nysa: Evidence for a trilobate structure https://arxiv.org/abs/2607.25786 https://arxiv.org/pdf/2607.25786 https://arxiv.org/html/2607.25786

Meg Schwamb@megschwamb.bsky.social · last mo.

Michael Küppers - Comet Interceptor is late 2028/early 2029 - on track for a December 2028 launch date. This updated launch date means that Comet Interceptor's tanks can be filled up as ARIEL (which it was supposed to hitch a ride to L2 is further delayed) #ACM2026

Harrison Agrusa@harrisonagrusa.bsky.social · last mo.

I’ve been exploring gravitational reaccumulation after asteroid catastrophic disruptions and am finding contact binaries are super common outcomes! I can’t help but notice how similar Torifune looks compared to this fragment from one of my simulations, which I will present tomorrow at #ACM2026

Andy Rivkin@asrivkin.bsky.social · last mo.

Torifune!! It looks like another Itokawa! As JB says, it’s a great time for asteroid studies, and hopefully we’ll hear a lot more over the course of the #ACM2026 meeting!

Astronomer Royal for Scotland | Catherine Heymans@astroroyalscot.bsky.social · last mo.

It's a day of fab asteroid news! 🤩 Image drop from yesterday's Japanese Space Agency JAXA high-speed close flyby of asteroid #Torifune (~450m across). This is the extension mission of #Hayabusa2, after its successful 2020 asteroid-sample collection from Ryugu. Next stop: another asteroid in 2031 🤩🔭🧪

Looks a little bit like two misshapen Ferrero Rocher chocolates stuck together, but it's actually asteroid Torifune
Astronomer Royal for Scotland | Catherine Heymans@astroroyalscot.bsky.social · last mo.

🤩 image drop from Chinese Space Agency asteroid sample return mission #Tianwen-2 (Heavenly Questions-2)! It's now orbiting Kamoʻoalewa, just 18m across, looking for a place to land, drill, & return 100g back to Earth to see if this is a missing piece of the moon. Then it goes on to a comet 😮🧪🔭

Aurélien Genin@astroaure.eurosky.social · last mo.

🛰️ On a même un premier film du passage d'Hayabusa-2 au plus près de l'astéroïde 😲 La sonde est passée à un peu moins d'1km, avec une vitesse relative de 5,3km/s ! 📸 JAXA

Aurélien Genin@astroaure.eurosky.social · last mo.

🛰 Aaaah, deuxième image d'un astéroïde publiée aujourd'hui 🤩 Cette fois c'est Torifune, survolé hier par Hayabusa-2 🇯🇵 qui est la star ! C'est un binaire à contact (deux astéroïdes qui ont fusionnés en se collant), exactement comme Itokawa, cible d'Hayabusa-1 🤯 📸 JAXA www.jaxa.jp/press/2026/0...

Images de Torifune prise par la caméra de navigation ONC-T
ESA Space Science@science.esa.int · 5mo ago

40 years ago, the Giotto mission was writing history:  🛰️ ESA's first deep space mission ☄️ first cometary close flyby ⏰ and later on, first reactivation of a spacecraft The success of Giotto inspired our Rosetta mission and together laid the foundation for our Comet Interceptor mission. 🔭 🧪 1/3

Comet Halley's nucleus as seen by Giotto. A lumpy, elongated comet nucleus fills most of the frame, set against deep black space. Bright, hazy jets of gas and dust stream from sunlit areas on the right-hand side, creating a faint glowing veil.
Simeon Schmauß@stim3on.bsky.social · 6mo ago

It still seems unreal to me that humans will soon be flying back to the moon! They will be returning to Earth at a speed of 40.000 km/h, the fastest ever reentry of a crewed spacecraft. This remastered video shows a similar reentry from the #Artemis 1 mission back in 2022 at 9x speed. 🔭🧪

Simeon Schmauß@stim3on.bsky.social · 6mo ago

You may have seen pictures, but have you ever seen video of a gigantic jet #TLE from space? Astronaut Jeanette Epps captured this incredible sequence on July 20th, 2024 for the DTU/@science.esa.int Thor-Davis experiment. 🧪🔭 youtu.be/xN2J7_rOBJY Credit: ESA/NASA/J. Epps Processing: Simeon Schmauß

Dr. Raphael Marschall@spacemarschall.net · 6mo ago

Hi y'all You still have a few days to apply for our open professor position in planetary science in Bern, Switzerland. See more details below! For any questions, feel free to reach out to me. 🔭🧪⚛️#planetSci

Dr. Raphael Marschall@spacemarschall.net · 9mo ago

Hi #planetaryScience folks, we have an open position for a *Professor in Planetary Sciences* at the Space Research & Planetary Sciences Division of the @unibe.ch. Application deadline: *Jan 31, 2026* Full ad: ohws.prospective.ch/public/v1/jo... Reach out to me if you have any questions! 🧵 1/5

Dr. Raphael Marschall@spacemarschall.net · 6mo ago

Hi y'all You still have a few days to apply for our open professor position in planetary science in Bern, Switzerland. See more details below! For any questions, feel free to reach out to me. 🔭🧪⚛️#planetSci

Dr. Raphael Marschall@spacemarschall.net · 9mo ago

Hi #planetaryScience folks, we have an open position for a *Professor in Planetary Sciences* at the Space Research & Planetary Sciences Division of the @unibe.ch. Application deadline: *Jan 31, 2026* Full ad: ohws.prospective.ch/public/v1/jo... Reach out to me if you have any questions! 🧵 1/5

Dr. Raphael Marschall@spacemarschall.net · 7mo ago

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