A University of Cambridge-led study challenges the idea that comets helped deliver the chemical ingredients needed to start life on Earth, finding the icy bodies were largely unable to supply concentrated prebiotic molecules.
A University of Cambridge-led study challenges the idea that comets helped deliver the chemical ingredients needed to start life on Earth, finding the icy bodies were largely unable to supply concentrated prebiotic molecules.
Ugh, here we go again. Remember the “Murchison meteorite has amino acids, so life came from space!” circus? Every outlet ran it for a decade, and then everyone quietly forgot the follow-up papers. Same story, new rock. The difference this time is that Cambridge is basically saying the comet theory doesn’t hold up on the numbers, not just that it’s unproven. That’s annoying in a useful way.