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• Select Astrobiology

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  Astrobiology

  Author:Agnieszka LichanskaFrom:The Gale Encyclopedia of Science (Vol. 1. 6^th ed.)

  20212,321 words Topic overview 1420LAstrobiology is the area of life science that investigates the origin of life, how the biological components interact to create an environment, and what makes planets habitable. It also searches for life on other...
• Select Origin of Life

  2

  Origin of Life

  Author:Dean Allen HaycockFrom:The Gale Encyclopedia of Science (Vol. 5. 6^th ed.)

  20213,073 words Topic overview 1410LThere is no direct fossil evidence of how life began on Earth. Such evidence could not exist: the molecular processes that scientists believe preceded the appearance of cells could not have left imprints on rock....