This is just the beginning! Our collection holds over 300 years of history, including rare newspapers, obituaries, marriage records, birth records, and so much more—most of which you won’t find anywhere else!
Cosmic Dust Piling Up To Make Earth Heavier
A cosmic dust influx adds about 13 tons per hour to Earth, totaling around 100000 tons yearly. University of Chicago researcher John L. Barker Jr. estimates this from iridium and osmium traces in Pacific Ocean sediments using neutron-activated samples and radiometric dating. The finding aligns with some Earth satellite measurements but is lower than others.
MENTIONED IN THIS ARTICLE
Atlantic City
N.J
Mother Earth
Earth
Space
American Chemical Society
John L. Barker Jr
Enrico Fermi Institute For Nuclear Studies
University of Chicago
Pacific Ocean
Barker