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)πŸ‡¨πŸ‡­πŸ‡ΊπŸ‡ΈπŸ‡«πŸ‡·

#asteroids #comets #protoplanetarydisks #planetaryScience πŸ§ͺπŸ”­πŸš€πŸ›°οΈβ˜„οΈ

@rami.spaceaustralia.comReposted by @spacemarschall.net

Just saw this news now (looks like it is a few days old) arXiv has received private funding -- $17.2M to be distributed across the next 3-5 years to help it establish and transition to an independent not-for-profit. This is good news for the preprint server and open access resources! πŸ”­πŸ§ͺ

@theplanetaryguy.comReposted by @spacemarschall.net

I said I'd do a thread about my new Space Science Reviews paper, so here it is! This is part of a collection of papers arising from a meeting at the International Space Science Institute in Bern in 2024: a workshop to better understand rocky extrasolar planets. A 🧡:

Interior structure models of Earth, Venus, Mercury, Mars, the Moon, and Io, all shown to scale and key elements labelled.
@astrokiwi.bsky.socialReposted by @spacemarschall.net

Interested by ISOs like 3I/ATLAS? PhD opportunity in interstellar object observations, here in New Zealand. Join our Ōtautahi-Oxford group & the NZ Gravity collaboration. Start by March 1. β˜„οΈπŸ”­

@derek.spaceReposted by @spacemarschall.net

NASA released a bunch of 16 and 35mm film engineering footage of the Artemis II launch today. Naturally I knew what I had to do with it.

@spacemarschall.net

Big milestone for us at the @unibe.ch! The laser altimeter BELA, built under our leadership, was operated successfully for the first time after leaving our facilities exactly 10 years ago. BepiColombo, BELA, and all of us are now ready for science at Mercury starting in March 2027! #planetSci

@bibianaprinoth.chReposted by @spacemarschall.net

In case you have missed it, we are hosting a super cool workshop on #exoplanets studies in Garching, Vitacura and Nice (YES, 3 places at the same time!!!) in November.

Bridging Horizons: Harnessing ESO's current facilities for the dawn of exoplanet population studies

Dates: **2-6 November 2026**

@mpoessel.deReposted by @spacemarschall.net

When we do outreach or education, astronomers frequently claim that public and student interest in astronomy is greater than in other sciences, making it an ideal entry way for science. My article analyzing Wikipedia page views which (somewhat) supports this claim is out in the CAP Journal. πŸ”­βš›οΈπŸ§ͺ🎒

@emily.spaceReposted by @spacemarschall.net

I am determined to prove that you can be largely anti-AI but also not be an asshole. The attitudes of some people on this site will NOT win over any minds or win you over any favours. If you insult someone, you are doing it to a real person. And it sucks!

@spacemarschall.net

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 πŸ§ͺ

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 Β±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

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