From health spas to film storage, salt mine caverns have been put to use in surprising ways—and they’re now poised to contribute to the generation and storage of clean energy.
hydrogen
A Mid-Ocean Ridge in the Norwegian Sea Pumps Out Hydrogen
Vent fluids collected from the Knipovich Ridge contain unexpectedly high concentrations of hydrogen, potentially produced by the degradation of organic matter.
Digging Deep into Interactions Between the Core and Mantle
A new book presents major advances in our understanding of core-mantle interaction and co-evolution, and showcases technological developments improving our insights into deep Earth processes.
Asteroid Impacts Could Have Warmed Ancient Mars
Hydrogen released during large impacts might have boosted Mars’s surface temperature above freezing for thousands or even millions of years, enabling liquid water to flow over the Red Planet.
Hydrogen May Push Some Exoplanets off a Cliff
High-pressure reactions of hydrogen and iron could explain gaps in the distribution of exoplanets.
Ice Cores Record Long-Ago Seasons in Antarctica
Researchers used ice core data to reconstruct seasonal temperatures throughout the Holocene. The results link especially hot summers with patterns in Earth’s orbit.
Callisto’s H Corona: Offspring of the Surface or the Atmosphere?
The mostly unknown Callisto’s H corona is created by a global tenuous H2 atmosphere and not by surface water as previously believed, providing the first evidence for H2 in Callisto’s atmosphere.
Tracing the Path of Gas Atoms from Earth to the Final Frontier
Scientists capture the first complete image of Earth’s luminous geocorona and prove its ecliptic north–south symmetry.
Water Beneath the Surface of Mars, Bound Up in Sulfates
Researchers present maps of hydrogen and sulfur that hint at water locked in hydrous sulfates in Mars's southern hemispheric soil.
