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The Emergence of Astrobiology: A Topic-Modeling Perspective.

Christophe Malaterre1,2, Francis Lareau3

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This study analyzes the evolution of astrobiology by examining journal articles. It reveals how the field shifted from origins of life to space and planetary sciences.

Keywords:
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Area of Science:

  • Astrobiology
  • Scientific Literature Analysis

Background:

  • Astrobiology, the study of life in the universe, emerged in the late 20th century.
  • Its interdisciplinary nature has led to evolving definitions and research focuses.

Purpose of the Study:

  • To computationally analyze the historical development of astrobiology research.
  • To identify key topics and track their evolution within the discipline over time.

Main Methods:

  • Utilized computational topic-modeling on full-text articles from three major astrobiology journals.
  • Analyzed publications from "Origins of Life and Evolution of Biospheres" (1968-2020), "Astrobiology" (2001-2020), and "International Journal of Astrobiology" (2002-2020).

Main Results:

  • Identified distinct topics characterizing the early development of astrobiology.
  • Mapped the temporal shift in research emphasis from exobiology and origins of life to space and planetary sciences.

Conclusions:

  • Astrobiology's focus has evolved significantly since its inception.
  • Computational analysis provides insights into the dynamic nature and disciplinary shifts within scientific fields.