Helium on Venus: Implications for Uranium and Thorium
Open Access
- 22 April 1983
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 220 (4595) , 410-411
- https://doi.org/10.1126/science.220.4595.410
Abstract
Helium is removed at an average rate of 106 atoms per square centimeter per second from Venus's atmosphere by the solar wind following ionization above the plasmapause. The surface source of helium-4 on Venus is similar to that on Earth, suggesting comparable abundances of crustal uranium and thorium.Keywords
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