When the Cascadia Subduction Zone finally ruptures, the shaking will start beneath the ocean floor, roughly 50 to 80 miles ...

On the surface, Antarctica’s vast ice sheet appears still and unchanging. The U.S. Geological Survey (USGS), collaborating with the IceCube Neutrino Observatory at the South Pole, has installed the ...

If there is a magnitude 8 or 9 megathrust earthquake off the coast of the Pacific Northwest, data from ocean bottom ...

For this next story, we go to the South Pole, where scientists have placed two seismometers 8,000 feet below the ice cap. These super-sensitive instruments will be used to measure earthquakes and ...

Space debris—the thousands of pieces of human-made objects abandoned in Earth's orbit—pose a risk to humans when they fall to the ground. To locate possible crash sites, a Johns Hopkins University ...

Aaron Lojewski, who leads aurora sightseeing tours in Alaska, was lucky enough to photograph a “eruption” of brilliant pink light in the night skies one night in February. The same perturbations of ...