Dr. Anna Gülcher
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planetaryanna.bsky.social
Dr. Anna Gülcher
@planetaryanna.bsky.social
Earth & Planetary scientist @ Center for Space and Habitability, Bern 🇨🇭 | Alumni NASA JPL, Caltech, & ETH Zürich | Venus • Earth • exoplanets • Geodynamics | VExAG Steering Committee | #WomeninSTEM💃 | 🇳🇱 🇨🇭 🇺🇸 | she/her
(4/4)🛰️ Diverse tectonic #activity is revealed at 52 Venus coronae based on topography and gravity; the VERITAS mission may uncover hundreds more:
doi.org/10.1126/scia... #ScienceAdvances
July 2, 2025 at 10:08 AM
(3/4) 🌋 Our new Venus coronae #database, open to all, includes 740 structures — the most ever catalogued — and identifies several morphological subsets:
doi.org/10.1029/2024... #JGRplanets
July 2, 2025 at 10:08 AM
(2/4) 🚀 The #first 3D geodynamic models of Venus rift tectonics reveal 5 modes of rifting. Venus' rifts may be active and shaped by evolving or laterally variable lithospheric and crustal properties:
doi.org/10.1016/j.ep... #EPSL
July 2, 2025 at 10:08 AM
Reposted by Dr. Anna Gülcher
The study was posted today in Science Advances and was co-led by @unibe.ch researcher @planetaryanna.bsky.social and University of Maryland Baltimore County + NASA Goddard researcher Gael Cascioli.

www.science.org/doi/10.1126/...
A spectrum of tectonic processes at coronae on Venus revealed by gravity and topography
Gravity and topography data reveal diverse mantle activity styles beneath Venus’ coronae and potentially hidden signals.
www.science.org
May 14, 2025 at 7:20 PM
Yes, the image automatically linked to the JGR:Planet's website is that of the journal's cover - not the paper, cannot adapt it!
May 8, 2025 at 10:25 AM
Previously published #Venus coronae databases, however, remain inaccessible to the public and/or incomplete -- our new database uses clear ID criteria to define 740 (!!) corona features on Venus, which is much higher than ever reported!
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
May 8, 2025 at 7:15 AM
"#Coronae" are defined by a (partial) quasi-circular ring of closely spaced concentric fractures. They are hugely abundant on #Venus' surface and considered key for Venus' tectonic and volcanic history ⚒️🌋
doi.org/10.1029/2024...
May 8, 2025 at 7:14 AM
Reposted by Dr. Anna Gülcher
Here's one way you can fight for NASA science: contacting your representatives using this tool from the Planetary Society.

www.planetary.org/advocacy-act...

2/2
Advocacy Action Center
The Planetary Society is organizing a new space constituency that is educated, empowered, and loud.
www.planetary.org
April 11, 2025 at 8:53 PM