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Dr. Raphael Marschall

@spacemarschall.net

3.9K followers 330 following 740 posts

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

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Dr. Raphael Marschall @spacemarschall.net · Nov 14

Hello to all new followers! I'm a 🇨🇭 physicist and planetary scientist at the Observatory in Nice 🇫🇷. I study asteroids, comets, and similar bodies and how they formed/evolved. This helps us understand how our Solar System formed. I'm also involved in several space missions.
#planetaryScience 🔭🧪🚀🛰️☄️🪨

Family picture of all asteroids visited by spacecraft except for Ceres. The different asteroids are to scale with Vesta being over 500 km large to Itakawa at only 500 m.
High resolution image here: https://spacemarschall.net/outreach/asteroid-family-picture/
Credit to individial asteroids in the legend.

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Dr. Raphael Marschall @spacemarschall.net · 21m

Thanks, Bojan!

Dr. Raphael Marschall @spacemarschall.net · 1h

Thank you so much, Nick!

Dr. Raphael Marschall @spacemarschall.net · 1h

Thank you so much, Paolo!

Dr. Raphael Marschall @spacemarschall.net · 1h

Thank you so much, JB!

Dr. Raphael Marschall @spacemarschall.net · 1h

Merci, Ben! Freue mich sehr auf die bevorstehende Aufgabe.

Dr. Raphael Marschall @spacemarschall.net · 2h

Thanks, Teddy!

Dr. Raphael Marschall @spacemarschall.net · 2h

I am delighted to finally announce that I have accepted an offer to become a Professor of Experimental Physics and Planetology at the @unibe.ch in Bern, Switzerland.
A huge thank you to everyone who believed in me and supported me over all these years! So excited for all that is to come 🚀🛰️🪨🪐

Historic university building with ornate architecture and arched windows at the University of Bern in Switzerland, photographed on a clear sunny day with green lawn in the foreground.

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Dr. Raphael Marschall @spacemarschall.net · 6h

Wow, that's awesome. I've never dared to try that.

Reposted by Dr. Raphael Marschall

Dr. JB Vincent @comet-toolbox.com · 1d

One year ago, our wonderful Hera mission lauched from Cape Canaveral and it has been performing amazingly since then.
A few days after launch, we acquired these beautiful views of our Earth and Moon, which have been used to calibrate the remote sensing instruments.

era’s Asteroid Framing Camera (AFC) captured this farewell image of Earth (bottom left) and the Moon (centre) on 11 October from a distance of approximately 1.6 million km. Earth is oriented with north pointing upwards, with the Pacific Ocean illuminated by the Sun.
Credit: ESA

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Dr. Raphael Marschall @spacemarschall.net · 1d

Interstellar comet #3I/ATLAS imaged by the CaSSIS camera in orbit around Mars lead out of @unibe.ch 🤩
Simply amazing that we can take such observations from the orbit of other planets 😱
#planetSci

ESA Space Science @science.esa.int · 1d

First images of comet #3I/ATLAS from Europe's Mars orbiters 😍

Observing the comet from 30 million km away, #ExoMars reveals the halo of gas and dust surrounding the comet's nucleus.

Read more 👉 www.esa.int/Science_Expl...
🔭🧪

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Reposted by Dr. Raphael Marschall

Emily Hunt @emily.space · 1d

ATProto devs - what do we need to do to ship independent PDS hosting to the Astronomy community ASAP?

Main Qs:
1. What software should we use (reference PDS implementation? The rsky one? Or another)
2. Legal aspects: what do we need to be careful of? Does GDPR apply? + are there PDS mod tools?

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Reposted by Dr. Raphael Marschall

Simeon Schmauß @stim3on.bsky.social · 4d

Last night, NASA's Perseverance rover looked up at the night sky once more, to capture interstellar #comet 3I/Atlas flying by the red planet.

The distance was "only" 0.2 AU or 30 Mio km, far closer than the comet ever got to Earth. 🔭 #3IAtlas

Credit: NASA/JPL-Caltech/ASU/Simeon Schmauß

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Reposted by Dr. Raphael Marschall

Barack Obama @barackobama.bsky.social · 8d

The arc of the moral universe is long, but it bends towards justice. Except it doesn’t bend on its own—it bends because we pull it in the direction of justice. What keeps me hopeful during times like these is being surrounded by people who are doing just that.

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Reposted by Dr. Raphael Marschall

International Space Science Institute (ISSI) @issibern.ch · 2d

🚨 Last chance!

Apply this week for the Johannes Geiss Fellowship — don’t miss the opportunity! 🔭

International Space Science Institute (ISSI) @issibern.ch · Sep 1

ISSI is now accepting applications for the 2026 Johannes Geiss Fellowship!

Apply by October 10, 2025 for a chance to conduct independent research (Astrophysics, Heliophysics, Planetary or Earth Sciences) in Bern.

Info&form via: www.issibern.ch/jgf-applicat...

#SpaceScienceOpportunity #JGF #ISSI 🔭

Call 2026 Johannes Geiss Fellowship

The International Space Science Institute (ISSI) in Bern, Switzerland invites applications for the 2026 Johannes Geiss Fellowship (JGF). With this fellowship ISSI honours the memory of Johannes Geiss,...

www.issibern.ch

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Reposted by Dr. Raphael Marschall

Astronomer Royal for Scotland | Catherine Heymans @astroroyalscot.bsky.social · 4d

Conventional wisdom says motherhood should wait for tenure as before you land a permanent post, #academia is just not that family friendly🙁

@carersinstemm.bsky.social are calling for change and to celebrate their new report, a Saturday🧵on parenting & academia! 1/9 👩‍🔬🧪🔭⚛️

ℹ️: carersinstemm.co.uk

From 2006. A younger and shell-shocked looking Catherine on a balcony holding a very tiny baby with the mountains of Vancouver in the background. The baby is so new, Catherine still has the pregnant bump.

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Dr. Raphael Marschall @spacemarschall.net · 4d

One more question for now. Is there a way to port libraries from ADS to SciX? It would be nice if I didn't have to rebuild them on SciX.

Dr. Raphael Marschall @spacemarschall.net · 5d

Thank you so much, Jennifer, for all this super helpful information. Yes, it might be great to get a demo for our institute at some point. Thanks for the offer!

Dr. Raphael Marschall @spacemarschall.net · 5d

That is super useful. How are those categories maintained? I'm mostly work on asteroids and comets. Is there a way the community can help with relevant keywords? Or do they have to come from the USGS? I don't know if ours that go through the IAU also get recorded by the USGS.

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Dr. Raphael Marschall @spacemarschall.net · 5d

Ohh, this is very cool! Definitely something I hadn't seen before.

Dr. Raphael Marschall @spacemarschall.net · 5d

Thanks for sharing. I've been heavily using ADS so far. So I'm curious, how is SciX different?

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Reposted by Dr. Raphael Marschall

Dr. Lucky Tran @luckytran.com · 6d

"If we lose hope, we're doomed."

We must continue Dr. Jane Goodall's mission and all fight for the future of the planet.

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Dr. Raphael Marschall @spacemarschall.net · 8d

bsky.app/profile/spac...

Dr. Raphael Marschall @spacemarschall.net · 9d

If you missed the @issibern.ch Game Changer Seminar by Mike Wong you can now watch it here:
www.youtube.com/watch?v=v8B2...

He discussed the fantastic OPAL program that uses the Hubble Space Telescope to obtain long-time baseline observations of the outer planets to understand their atmospheres.

OPAL 10-year anniversary with Mike Wong

YouTube video by International Space Science Institute

www.youtube.com

Dr. Raphael Marschall @spacemarschall.net · 9d

OPAL 10-year anniversary with Mike Wong

YouTube video by International Space Science Institute

www.youtube.com

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Dr. Raphael Marschall @spacemarschall.net · 9d

A great colleague and friend, JB Vincent (@comet-toolbox.com), has joined these blue skies. Give him a follow if you like comets and asteroids!

Reposted by Dr. Raphael Marschall

Steve Desch @deschscoveries.bsky.social · 28d

Sorry it took me so long to grade your August 20 assignment, Avi Loeb. Are you sure you're ready for a class on comets? You might need to learn about things like bow shocks and chemistry.

Avi Loeb posted these notes on comet 3I/ATLAS on August 20, but they are full of mistakes. I correct them and provide notes on how comets actually work.

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