A mock debate on time with British physicist and science writer Julian Barbour and NYU philosophy professor Tim Maudlin, reposted from FQXi’s Setting Time Aright conference in Copenhagen.
Ancient Antarctica was much warmer and wetter than previously suspected, a new study has found. The climate was suitable to support substantial vegetation – including stunted trees – along the edges of the frozen continent. By examining plant leaf wax remnants in sediment core samples taken from beneath the Ross Ice Shelf, the research team…
For centuries, the people of the Gilbert Islands in the central Pacific Ocean have crafted weapons from shark teeth. Joshua Drew, a conservation biologist at Columbia University in New York, has used these teeth to show that the waters around the islands were once home to three species of shark that no longer live in…
U.S. astronomers say they’ve observed a young star with a rotating dust disk considered the youngest still-forming planetary system ever found. The infant star surrounded by a swirling disk of dust and gas is more than 450 light-years from Earth in the constellation Taurus, the National Radio Astronomy Observatory reported. While just one-fifth the mass…
A group of researchers led by the Universitat Autònoma de Barcelona has discovered the first scientific evidence of genetic blending between Europeans and Asians in the remains of ancient Scythian warriors living over 2,000 years ago in the Altai region of Mongolia. Contrary to what was believed until now, the results published in PLoS ONE…
An epic battle between paintballs and a giant asteroid could one day save the Earth from an apocalyptic space rock impact. The novel asteroid-deflecting scheme proposes that a cloud of paintballs shot into space could knock a dangerous asteroid off a collision course with Earth. Sung Wook Paek, an MIT graduate student, says a spacecraft…
Researchers from the Laboratoire Leprince-Ringuet have carried out the first measurement of the intensity of the diffuse extragalactic background light in the nearby Universe, a fog of photons that has filled the Universe ever since its formation. Using some of the brightest gamma-ray sources in the southern hemisphere, the study was carried out using measurements…