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Life's origin: the cosmic, planetary and biological processes.

T Scattergood1, D Des Marais, L Jahnke

  • 1Department of Earth and Space Sciences at the State University of New York at Stony Brook, USA.

The Planetary Report
|November 1, 1987
PubMed
Summary

The evolution of life, from interstellar elements to humans exploring space, is a complex journey. This process requires specific planetary conditions, chemical building blocks, and energy, all traced through DNA and leading to life

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Site selection for Mars exobiology.

Advances in space research : the official journal of the Committee on Space Research (COSPAR)·1995

Area of Science:

  • Astrobiology and Evolutionary Biology
  • Origin and evolution of life on Earth

Background:

  • Life's emergence necessitates planets with liquid water, essential chemicals, and energy sources.
  • The intricate process of life's evolution spans from interstellar elements to complex organisms.

Purpose of the Study:

  • To trace the evolutionary history of life.
  • To understand the conditions required for life's origin and development.

Main Methods:

  • Tracing the historical development of life through key stages.
  • Highlighting the role of DNA in information transfer and evolution.

Main Results:

  • Life originated from chemical and energy interactions on Earth.
  • Evolution led to the development of self-replicating molecules and information transfer via DNA.
Keywords:
NASA Center ARCNASA Discipline ExobiologyNASA Discipline Number 52-30NASA Program Exobiology

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  • Life diversified and colonized terrestrial environments, culminating in human evolution.

    • Conclusions:

    • Life's evolution is an intricate, potentially inevitable process.
    • Humanity, through technology, now seeks to understand life's origins and explore for extraterrestrial life.