What Seeded Life on Earth? New Research Challenges the Longstanding Theory That Comets Brought the Ingredients to Our Planet
Computer simulations suggest comets carrying a key precursor to many of life's building blocks would have rarely—if ever—successfully reached Earth's surface. And even if they did, only specific landing conditions would have allowed the precursor molecule to drive biologically relevant reactions
We haven't written up this one. Smithsonian has the full story — the link below goes straight to it.
