@article{eb677e96579d42ea9c82ef5307c91fe6,
title = "Discovery of nuclear tracks in interplanetary dust",
author = "Bradley, {J. P.} and Brownlee, {D. E.} and P. Fraundorf",
note = "Nuclear tracks have been identified in interplanetary dust particles (IDP's) collected from the stratosphere. The presence of tracks unambiguously confirms the extraterrestrial nature of IDP's, and the high track densities (1010 to 1011 per square centimeter) suggest an exposure age of approximately 104 years within the inner solar system.",
year = "1984",
month = dec,
day = "21",
doi = "10.1126/science.226.4681.1432",
language = "American English",
volume = "226",
journal = "Science",
}