NASA Study Challenges Theories on Where the Ingredients for Life Came From
universetoday.com
A NASA study is rewriting the origin-of-life playbook by challenging where Earth's life-essential elements actually came from — and the answer may upend decades of planetary science theory.
PanspermiaLate Veneer HypothesisAbiogenesisPlanetary Accretion Theory

Theory Briefing
- NASA-supported scientists found new evidence challenging the leading theory that life's key ingredients arrived via asteroid bombardment after Earth formed.
- The study examines how volatile elements like carbon, nitrogen, and sulfur were delivered to early Earth — core ingredients without which life cannot exist.
- Findings suggest Earth's life-building materials may have been acquired through processes far earlier or more complex than the 'late veneer' hypothesis assumes.