Did Comets Bring Life’s Ingredients to Earth? New Research Casts Doubt on Longstanding Theory

· Thedebrief · Oct. 29, 2026, 1:45 p.m.
Biology Breaking News space Asteroid scientific-research Astrobiology Earth Sciences Origin of Life
Summary
Recent research raises doubts about the theory that comets delivered life’s essential ingredients to Earth, challenging a longstanding scientific belief.
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