Geophysics/Gravity

Over millions of years, Earth's summits and valleys have moved and shifted, resulting in the dramatic landscapes of peaks and shadows we know today. Mountains often form when pressure under Earth's surface pushes upward, yet many factors…

Kyushu University researchers' analysis of seismic data reveals for the first time a large reservoir of methane or carbon dioxide gas where the Earth's crust is being pulled apartCredit: Takeshi Tsuji, Kyushu University Analyzing…

Credit: NASA/Goddard/SORCE For 400 years people have tracked sunspots, the dark patches that appear for weeks at a time on the sun's surface. They have observed but been unable to explain why the number of spots peaks every…

Pores, or empty spaces, in rock are critically important for sustaining life on EarthCredit: R. Callahan (Carlisle, Pa., Sept. 18, 2019) - New research published today in the journal Science Advances challenges the…

Second-lowest September minimum since observations beganCredit: Graphic: meereisportal.de The sea-ice extent in the Arctic is nearing its annual minimum at the end of the melt season in September. Only circa 3.9 million square…

Ozone hole, fires in the Amazon, and gravity waves are focus of German research aircraft HALOCredit: DLR MInikin The most important goal of the first phase of the SouthTRAC (Transport and Composition of the Southern Hemisphere UTLS)…

New tabletop source of neutrons for geochronology, forensics, medical isotopesCredit: Cory Waltz, LLNL In an underground vault enclosed by six-foot concrete walls and accessed by a rolling, 25-ton concrete-and-steel door,…

Credit: Source: IFJ PAN A planet wide particle detector known as CREDO has been established by research and education organisations, bringing together individual citizen scientists from nearly every continent. All smartphone owners can…

Credit: Phil Bart, LSU Phil Bart has traveled to Antarctica seven times since the late 1980s--a feat that very few can say. Thirty years is a microscopic blip on a geological time scale, and although the continent's ice cover may…

Credit: Photo by L. Brian Stauffer CHAMPAIGN, Ill. -- Volcanic eruptions and their ash clouds pose a significant hazard to population centers and air travel, especially those that show few to no signs of unrest beforehand. Geologists are…