Studies question comets' role in starting life and examine sea ice and mummy medicine
This science roundup covers three studies. One model-based study of more than 100,000 comet impact simulations suggests cometary delivery of prebiotic molecules such as hydrogen cyanide was rare and that life more likely arose from Earth's interior. A second study proposes that sea ice on ocean exoplanets could concentrate chemicals for abiogenesis, and a third analyses historical Mumia vera products. The articles contain no security-relevant content.