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The article looks at research on the geophysical history of the Earth, focusing on the changes in its magnetic field. It discusses a simulation experiment carried out by geophysicists Ronald Cohen and Peng Zhang on the conditions in the Earth's core. Topics include estimates of thermal conductivity and radioactive decay.

The article discusses a geological phenomenon, called slow slip, in which two sides of a geologic fault shift the same amount as a large quake, but over a longer period of time. Topics include research by geophysicist Herb Dragert and colleagues who observed slow slip at Albert Head on Vancouver Island, British Columbia, the geology of Albert Head, and how slow slip, which is usually accompanied by tremors, help scientists explaining where all the motion of the subducting plate goes.

The article discusses the results of a study published in the January 2012 issue of periodical "Geophysical Research Letters," by geophysicist Jacopo Taddeucci and colleagues about the use of high-speed cameras to record volcanic activity in order to measure rock and gas blasts. Topics include how volcanologists recreated eruptions in the laboratory and how measurements were taken of eruptions at Mount Stromboli in Italy.

The article discusses competing theories on sand dunes in the August 7, 2013 issue of the journal "Geophysical Research Letters" by Mathieu Génois of Paris Diderot University in France and colleagues and Stacey Worman of Duke University and colleagues. Topics include studies investigating the structure of barchan corridors in sand dunes, disagreement on the factors limiting dune size, Génois and colleagues collision theory, and Worman and colleagues calving theory.

The article discusses a study by geophysicist Colin Stark at Columbia University's Lamont-Doherty Earth Observatory in Palisades, New York in the March 22, 2013 issue of the journal "Science" reporting an earthquake monitoring system that can detect rock avalanches. Topics include factors contributing to landslide strikes, the analysis of seismic activity to predict landslides, and the method's ability to calculate a landslide's magnitude.

The article discusses the results of a study published in the February 2012 issue of periodical "Bulletin of the Seismological Society of America," by geophysicist Gary Fuis and colleagues about the geometric shape of the San Andreas Fault in California. Topics include how the fault's twists may increase risks in certain regions and how tilted faults can create large earthquakes.

The article cites a report in the August 6, 2011 online issue of the "Journal of Geophysical Research: Earth Surface" regarding research investigating how sastruga, which is a wavelike ridge on the surface of hard snow formed by wind, affects how much sunlight the snow reflects, called albedo.

The article discusses a report in the May 16, 2010 issue of the "Geophysical Research Letters" regarding findings by planetary geophysicists at the University of the German Armed Forces in Munich, Germany, which suggest that planet Mars' moon Phobos may contain a large amount of empty space. Topics include an overview of the geophysics of Phobos, such as its overall density.

Focuses on suggestions being made by some scientists about possible uses for the section of tunnel that had already been drilled for the Superconducting Super Collider before Congress killed the project. Proposal by geophysicists for a suite of potential experiments; Hopes of forestalling the closure of the tunnel. Article by Herbert F. Wang and his colleagues in the Nov. 29, 1994 issue of `Eos.'

Comments on recent geologic studies which suggest that the Rogers Creek fault may pose the greatest immediate concern to residents of the San Francisco Bay area of California. Evidence that the fault may be nearing a magnitude seven earthquake; Fall meeting of the American Geophysical Union.

Reports that the Deep Sea Drilling Project has shifted its focus from hard rock geophysics and tectonics to paleoenvironment by undertaking studies of changes in ocean ecology along the Pacific coast with its Challenger drilling vessel. Reconstruction of the history of boundary currents stretching along the California coast; Advantages of abundant fossils present in the sediments; Discovery by the Challenger vessel.

Reports that Van Allen belts of trapped radiation around the earth, include a substantial contribution from earth's own atmosphere along with the charge particles from the solar wind. Source of the findings regarding composition of Van Allen belts; Ions detected along the earth's magnetic field lines; Significance of the discovery on Van Allen belts composition.

Reports on the analysis of seismic and gravity data done by the geophysicists David Hadley and Hiroo Kanamori at the California Institute of Technology, Pasadena, that shows no evidence of roots for southern California's transverse ranges. Speculations of the scientists on the origin of the ranges; Prediction of an uplift by the Hadley-Kanamori concept; Other suggestions of the seismic data.