Posted inAstrochemistry, Astrogeology, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Fossils & Paleontology, Status Report, Water/Hycean Worlds & Oceanography Sea Foam Contains Hemoglycin From Cosmic Dust by Keith CowingOctober 3, 2024October 3, 2024 In-falling cosmic dust has left evidence of meteoritic polymer amide in stromatolites, both fossil and modern.