The last place most people would expect to find fresh groundwater is tens or hundreds of kilometers offshore in the ocean. Yet not only is that where freshwater can be found, in the ground of the continental shelf beneath the ocean, but simulations have […]
The glass rained from the sky as the bomb annihilated the Japanese city. .. When a 10-kilometer-wide asteroid hit Earth about 66 million years ago, the ensuing blast annihilated the dinosaurs. When the United States dropped an atomic bomb on the city of Hiroshima, […]
Hurricanes occur every year, and sometimes two or three hurricanes can be active at the same time. Using names for these storms makes it much easier for meteorologists, researchers, emergency response workers, ship captains and citizens to communicate about specific hurricanes and be clearly […]
Rare earth elements are a group of seventeen chemical elements that occur together in the periodic table (see image). The group consists of yttrium and the 15 lanthanide elements (lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium). […]