The mystery xenon in Earth’s atmosphere came from icy comets
June 9, 2017, Press release on the publication “Bernard Marty et al. Xenon isotopes in 67P/Churyumov- Gerasimenko show that comets contributed to Earth’s atmosphere. Science 356, Issue 6342, pp. 1069-1072, doi: 10.1126/science.aal3496 ” on Newscientist.com.