Krypton from the Earth’s mantle, collected from geologic hot spots in Iceland and the Galapagos Islands, reveals a clearer picture of how our planet formed, according to new research from […] ...

Analysis of krypton isotopes trapped in a Martian meteorite could jumble astronomers’ understanding of how the planet’s atmosphere formed. By piecing together how Mars formed the atmosphere it ...

New, very precise measurements of krypton isotopes from deep in the Earth show that water, ... Williams and Mukhopadhyay accurately measured the ratios of neon isotopes that were trapped in the ...

Argonne physicists are using a unique, laser-based, atom-counting technique called Atom Trap Trace Analysis to selectively capture and count the krypton isotopes 81Kr and 85Kr to determine the age ...

FERMI and his collaborators1 detected two unstable isotopes of bromine characterized by half-periods of eighteen minutes and 4.2 hours. The nuclear transformations are probably expressed by the ...

IN the course of our atomic mass measurement programme, we have recently had occasion to measure the masses of some of the isotopes of krypton and xenon by the mass-spectrographic doublet method.

Instead, the krypton isotopes suggest planetesimals from the cold outer solar system bombarded the Earth early on, millions of years before the big crunch.