Astronomy & Space

Asteroid that killed dinosaurs spawned underground life for 8 million years

AI Insight

New research indicates that the Chicxulub asteroid impact, which caused the extinction of dinosaurs 66 million years ago, created underground hydrothermal systems that supported microbial life for approximately 8 million years. This duration is significantly longer than previously estimated. The impact generated sufficient heat and fracturing in the subsurface to maintain habitable conditions for thermophilic microorganisms in these deep environments.


This finding expands our understanding of how catastrophic impacts can paradoxically create new ecological niches for life, particularly in extreme subsurface environments. It has implications for astrobiology and the search for life on other planets, suggesting that impact craters on Mars or icy moons could harbor similar long-lived habitable zones.


The asteroid that caused the extinction of the dinosaurs also created an underground environment suited to supporting new life, and new research suggests it lasted for millions of years longer than previously suspected.

Source: Dino-killing asteroid may have fueled underground life for 8 million years