We kick off the second half of the first season of Into the Core with this sixth episode, featuring Jonathan Obrist-Farner.

In this conversation, our team explores Jonathan’s unique journey — from his early studies in psychology to his transition into geosciences, a path that has led him to propose his first ICDP project. The episode also includes a heartfelt tribute to Andy Cohen, whose legacy we honor and remember.

But the journey hasn’t always been easy. Jonathan shares challenging field experiences, including the demanding work of walking more than 6 kilometers multiple times a day to help build a drilling platform in the lakes of Guatemala.

Curious to hear more about this amazing story? Join us for this inspiring episode.

Jonathan is an assistant professor at Missouri University of Science and Technology (Missouri S&T), originally from Guatemala. He is a geologist and geophysicist with a background in psychology, and the Principal Investigator of the recently approved ICDP project LIBRE (Lake Izabal Basin). His research focuses on sedimentology, stratigraphy, and paleoclimatology, with a particular interest in the evolution of sedimentary basins and the tectonic, climatic, and anthropogenic controls that shape them.

Hosts: Rodrigo Martínez-Abarca and Romina Achaga
Guest: Jonathan Obrist-Farner

Into the Core is supported by the International Continental Scientific Drilling Program (ICDP) and is an initiative of the Early Career Researchers Network. Original idea by Marta Marchegiano.

Copyright-free background music, 2026.

The Into the Core team continues recording in Aix-les-Bains, interviewing scientists involved in ICDP projects.

In this fifth episode, Daniel Ariztegui shares stories and lessons from his years of experience in scientific drilling — including the time he had to meet with royalty to request permission to drill, only to be told: “Do not touch the lake water.”

Curious how they managed to solve it? Join us to find out.

Daniel is an Argentine researcher currently based in Switzerland. His work focuses on sedimentology of drill cores and includes experience in seismic analysis and geochemical proxies, such as organic matter isotopes, to reconstruct past environmental and climate changes.

Host: Rodrigo Martínez-Abarca

Guest: Daniel Ariztegui

"Into the Core" is supported by the International Continental Drilling Program (ICDP) and an initiative of the Early Career Researchers Network. Original idea by Marta Marchegiano.

Copyright-free background music, 2026.

We continue recording from IPA-IAL 2025 in Aix-les-Bains for the fourth episode of Into the Core. This time, we are joined by Liseth Pérez Alvarado, a senior scientist originally from Guatemala and currently based in Kiel, Germany.

Liseth investigates the clues that ostracods — small crustaceans living in the water column — leave behind in lacustrine and marine sediments. She has been involved in several ICDP projects, including MexiDrill Chalco in Mexico, Lake Petén Itzá in Guatemala, and the upcoming Lake Izabal drilling project.

In this episode, we talk about her field experiences, her scientific journey, and some unforgettable stories from her student days — including the time she lost a boat engine during fieldwork.

Host: Rodrigo Martínez-Abarca
Edition: Romina Achaga
Starring: Liseth Pérez Alvarado

"Into the Core" is supported by the International Continental Scientific Drilling Program (ICDP) and an initiative of the Early Career Researchers Network. Original idea by Marta Marchegiano.

Copyright-free background music, 2026.