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Mariana Sastre

@marianasastre.bsky.social

54 followers 190 following 1 posts

Colombian 🇨🇴 PhD Student at University of Groningen. NL. Working on exoplanetary geophysics and magma ocean evolution🌋 Volcano-lover and photography enthusiast.

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Mariana Sastre @marianasastre.bsky.social · Jun 26

Hola Astro/Geo/Photo/Documentary- BlueSky community! This is my first post soooo: I’m Mariana, I’m a 2nd year PhD Student researching the geophysical evolution of Magma Ocean Exoplanets! I’m in love with volcanoes of this and other planets 🌋👑🌍

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Reposted by Mariana Sastre

Caltech IPAC @caltechipac.bsky.social · 21d

The official number of exoplanets has surpassed 6,000! And you can access data on all 6,007 of them right here at IPAC 📈 🪐

Watch the video & read all about the center of the exoplanet universe (also known as NExScI!) here:
www.ipac.caltech.edu/news/the-nas...

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Reposted by Mariana Sastre

Harrison Nicholls @nichollsh.bsky.social · Jul 4

In our new paper we model the complete evolution of L 98-59 d from 'birth' up to the present day. We show that it cannot be a gas dwarf or a water world; it's a 'hybrid' planet with an H2-rich atmosphere containing H2S and SO2 (photochemistry!), and a deep magma ocean.

@timlichtenberg.bsky.social

ClimateBook @climatebook.bsky.social · Jul 4

New paper on the molten Super-Earth L98-59d by @nichollsh.bsky.social in our group. arxiv.org/abs/2507.02656

Volatile-rich evolution of molten super-Earth L 98-59 d

Small low-density exoplanets are sculpted by strong stellar irradiation but their origin is unknown. Two competing scenarios are that they formed either with rocky interiors and H2-He atmospheres (`ga...

arxiv.org

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Mariana Sastre @marianasastre.bsky.social · Jun 26

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