Asteroid mining companies are finally getting off the ground, and that is raising some concerns about the impact those activities will have on the space environment. A new paper published in Acta ...
Permafrost regions contain a globally significant mercury (Hg) reservoir. An estimated 1,656 ± 962 Gg total Hg in Northern Hemisphere permafrost-region soils, with 793 ± 461 Gg frozen in ...
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