MR. D. L. CHAPMAN'S argument appears essentially to be similar to that already developed from a quite different point of view by Lindemann (Phil. Mag., 1919, vol ...

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Researchers have discovered eight new rare isotopes of the elements phosphorus, sulfur, chlorine, argon, potassium, scandium and, most importantly, calcium. These are the heaviest isotopes of these ...

Analysis of Apollo-return samples revealed that the chlorine content and isotope compositions of lunar samples are unique compared with Earthly and other materials, such as meteorites, suggesting that ...

Sulfur and chlorine isotopes in the atmosphere of Jupiter’s moon Io indicate that it has been volcanically active for the entire 4.57 billion-year history of the Solar System, according to a new study ...

It's been more than 50 years since the Apollo missions, and in that time, chemical analyses of the recovered lunar materials have revolutionized our understanding of planetary materials. One of the ...

THE method outlined in our letter of September 30, 1920 (NATURE, vol. cvi., p. 144), and used for the partial separation of the isotopes of mercury, has enabled us to accomplish a partial separation ...