Researchers have found that shrimp collected from the deepest points of the ocean contain radioactive carbon that they have absorbed from the detonation of nuclear bombs. The scientists collected the crustaceans from three deep trenches in the West Pacific, including the world's deepest ocean trench, the Mariana. During examination, the crustaceans were dissected and their tissue tested positive for signs of Carbon-14, a radioactive isotope that was released during the detonation of nuclear bombs in the 1940s. Read more.
Meteorites are spacefaring museums preserving physical and chemical information from a long-gone era.
The formation and evolution of our Solar System is one of the cornerstone problems of modern astronomy.
One widely accepted yet incomplete model suggests that a portion of large and dense molecular cloud collapsed at a point, to form a protostar and a protoplanetary disk surrounding it. As this proto-Sun evolved to a more stable form, the gas and dust surrounding it cooled and coagulated to form small and large bodies that we see today as asteroids, comets, rocky planets and gas giants. Read more.
Soil microbes are wild, unpampered and uncultured. But to understand their ecology, don't look in laboratory cultures, look in the soil. Read more.
The secret’s in the seabirds.
An endangered subspecies of iguana called the Allen Cays rock iguana has drawn John Iverson, a biology professor from Earlham College in Indiana, to the Exumas for the past four decades. These iguanas were once confined to just two islands, Leaf Cay and U Cay, but by the late 1990s Iverson noticed some had spread to nearby islands, especially Allen Cay. The simple explanation was that winds and currents had whisked baby iguanas across the 300-foot-wide channel separating Leaf and Allen Cays. There was just one problem: The iguanas on Allen Cay were relative giants, twice as long and six times as heavy as their counterparts on other islands. Read more.
A process that takes more than one trillion years, the age of the universe has been measured by researchers. The researchers used an instrument that is built to search for black matter (the most elusive particle that's known to man!). An international team from the XENON Collaboration made public their observation of the radioactive decay of a substance that is called xenon-124, a form of an isotope, of the element xenon - a colorless, dense but odorless noble gas that’s found in trace on the Earth’s atmosphere. Read more.