Coverage dated October 28, 2026 to October 29, 2026
Ancient Comets Carried Organic Compounds, But They Didn't Survive Crashing Into Earth
Headline from Universe Today
Perhaps the biggest mystery we face is life on Earth started. One hypothesis says that comets, which are known to carry important chemicals in abiogenesis, delivered these compounds to Earth, leading to the appearance of life. But new research concludes that that is highly unlikely.
Universe Today's own description from its feed. We collect headlines and these descriptions, not full articles; read the original reporting below.
The theory that comets delivered the molecular building blocks for life on Earth is a long-standing one, since comets are known to carry many of these molecules. However, a new study challenges this idea.
A Cambridge-led study suggests comets rarely delivered useful quantities of life’s molecular ingredients to early Earth because impacts destroyed them and surviving material wouldn’t have stayed concentrated at the surface for long.
Perhaps the biggest mystery we face is life on Earth started. One hypothesis says that comets, which are known to carry important chemicals in abiogenesis, delivered these compounds to Earth, leading to the appearance of life. But new research concludes that that is highly unlikely.
