You should also think about the job prospects, how vibrant is the field. Planetary science is certainly a growth area right now if you're in the exoplanet side of things. Ask yourself which of these papers would you like to have been part of, writing or thinking about? I get the impression that in math collaboration is less common than in physics or astronomy.
Welcome to the July 2023 Ask Me Anything episode of Mindscape! These monthly excursions are funded by Patreon supporters (who are also the ones asking the questions). We take questions asked by Patreons, whittle them down to a more manageable number -- based primarily on whether I have anything interesting to say about them, not whether the questions themselves are good -- and sometimes group them together if they are about a similar topic.
We're experimenting with a new benefit for Patreon supporters: short video (or audio-only) reflections by me on the podcast that just happened. If you've been wondering whether to join up, this could be the time.
Blog post with questions and transcript: https://www.preposterousuniverse.com/podcast/2023/07/03/ama-july-2023/
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