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Highlights include enriched and related content of notable journal articles presented on Eos org AGU org AGU On Demand and in AGU journals

What Regions Are Most at Risk for Ice Loss in East Antarctica?

Sarah Witman, Freelance Writer

From Research Spotlights—Scientists model the impact of environmental warming on ice drainage basins in the less studied East Antarctica.  The environment of Antarctica is unique in many ways, one being that the continent is covered almost entirely by a vast sheet of ice, stretching from the.... more

Last remnant of North American ice sheet likely to disappear in 300 years

Joint Press Release—The last remaining piece of the vast ice sheet that once covered North America is doomed to vanish in the next few centuries, a new study finds. Rising temperatures in the Arctic have caused the Barnes Ice Cap to melt at an extraordinary pace, and nothing short of removing carbon.... more

Ice in Ceres’ shadowed craters linked to tilt history

Blog Post—Dwarf planet Ceres may be hundreds of millions of miles from Jupiter, and even farther from Saturn, but the tremendous influence of gravity from these gas giants has an appreciable effect on Ceres’ orientation. In a new study, researchers from NASA’s Dawn mission calculate that the axial tilt.... more

Why Do Great Earthquakes Follow Each Other at Subduction Zones?

Terri Cook, Freelance Writer

From Research Spotlights—A decade of continuous GPS measurements in South America indicate that enhanced strain accumulation following a great earthquake can initiate failure along adjacent fault segments.  Recently, seismologists have recognized that great subduction zone earthquakes, also.... more

Volcanic eruption expanded ozone hole to record size

Blog—On April 22, 2015, the Chilean volcano Calbuco erupted, spewing volcanic ash 10 kilometers (six miles) skyward. But Calbuco didn’t just tear a hole in the Earth that day. A new study suggests it also tore a hole in the sky. The new study argues that Calbuco’s eruption stretched the Antarctic Ozone.... more

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Featured Special Collection

First Results from NASA's Magnetospheric Multiscale (MMS) Mission

The Magnetospheric Multiscale (MMS) mission has been performing particle and electromagnetic field measurements in the near-Earth environment since its launch in March 2015. Thanks to data with unprecedented time resolution on four identical spacecraft in a close tetrahedron configuration (down to 10 km), MMS science goals are to probe and understand the electron-scale physics involved in the magnetic reconnection process. This collection provides a selection of key results obtained during the first phase of the mission at the dayside magnetopause. It includes new observations of the geometry and variability of the reconnection process, the detailed dynamics of particles, fields and waves in the vicinity of the reconnection region, the observation of small-scale signatures at current sheets formed in the magnetosheath, in Kevlin-Helmholtz vortices, or flux transfer events, as well as other small-scale features which are by-products of magnetic reconnection or not. These results open a new window for our understanding of magnetic reconnection in space, with direct and numerous implications for astrophysical and laboratory plasmas.