New isotope cluster could lead to better understanding of atmospheric carbon...
(PhysOrg.com) -- A team of researchers has discovered an unexpected concentration of a certain isotopic molecule in parts of the stratosphere that could have implications for understanding the carbon...
View ArticleMars breakthrough: Scientists uncover red planet's hot and steamy secrets
(PhysOrg.com) -- An analysis of Martian meteorites has led scientists to believe that Mars was molten for up to 100 million years after it formed, thwarting the evolution of early life on the planet.
View ArticleDiet, population size and the spread of modern humans into Europe
Stable isotope data published this week in the Proceedings of the National Academy of Sciences by Erik Trinkaus, professor of anthropology at Washington University in St. Louis, and Michael Richards of...
View ArticleNew laser technique may help find supernova
One single atom of a certain isotope of hafnium found on Earth would prove that a supernova once exploded near our solar system. The problem is how to find such an atom - among billions of others....
View ArticleRebooting of Canadian medical isotope reactor delayed
A Canadian reactor that produced one-third of the world's supply of medical isotopes before it closed in May for repairs will remain offline at least until early 2010, nuclear authorities said Thursday.
View ArticleThe greenhouse gas that saved the world
When Planet Earth was just cooling down from its fiery creation, the sun was faint and young. So faint that it should not have been able to keep the oceans of earth from freezing. But fortunately for...
View ArticleSnail fossils suggest semiarid eastern Canary Islands were wetter 50,000...
Fossil land snail shells found in ancient soils on the subtropical eastern Canary Islands show that the Spanish archipelago off the northwest coast of Africa has become progressively drier over the...
View ArticleHigh-performance plasmas may make reliable, efficient fusion power a reality
In the quest to produce nuclear fusion energy, researchers from the DIII-D National Fusion Facility have recently confirmed long-standing theoretical predictions that performance, efficiency and...
View ArticleAre the Alps growing or shrinking?
The Alps are growing just as quickly in height, as they are shrinking. This paradoxical result could be proven by a group of German and Swiss geoscientists. Due to glaciers and rivers about exactly the...
View ArticleAtomic Particles Help Solve Planetary Puzzle
(PhysOrg.com) -- A University of Arkansas professor and his colleagues have shown that the Earth's mantle contains the same isotopic signatures from magnesium as meteorites do, suggesting that the...
View ArticleEarth's early ocean cooled more than a billion years earlier than thought (w/...
(PhysOrg.com) -- The scalding-hot sea that supposedly covered the early Earth may in fact never have existed, according to a new study by Stanford University researchers who analyzed isotope ratios in...
View ArticleProton's party pals may alter its internal structure
A recent experiment at the DOE's Thomas Jefferson National Accelerator Facility has found that a proton's nearest neighbors in the nucleus of the atom may modify the proton's internal structure.
View ArticleBig freeze plunged Europe into ice age in months
In the film, 'The Day After Tomorrow' the world enters the icy grip of a new glacial period within the space of just a few weeks. Now new research shows that this scenario may not be so far from the...
View ArticleCarbon and oxygen in tree rings can reveal past climate information
The analysis of carbon and oxygen isotopes embedded in tree rings may shed new light on past climate events in the Mackenzie Delta region of northern Canada.
View ArticleStudy reveals how Arctic food webs affect mercury in polar bears
With growing concerns about the effects of global warming on polar bears, it's increasingly important to understand how other environmental threats, such as mercury pollution, are affecting these...
View ArticleDNA testing on 2,000-year-old bones in Italy reveal East Asian ancestry
Researchers excavating an ancient Roman cemetery made a surprising discovery when they extracted ancient mitochondrial DNA (mtDNA) from one of the skeletons buried at the site: the 2,000-year-old bones...
View ArticleFinding a Secret Map to Erosion (w/ Video)
(PhysOrg.com) -- On the northeast coast of New Zealand's North Island, the Waipaoa River drains into the dazzling sea. Upriver, things are not so pretty. More than a century of land clearing for...
View ArticleU.S. company strikes deal with Poland for isotope used in medical tests
As U.S. physicians face an impending crisis caused by lack of a crucial isotope used in many diagnostic procedures, a U.S. company said Wednesday that it had reached an agreement with the Polish...
View ArticleDecapitated skeletons were Vikings: scientists
Dozens of decapitated skeletons have been unearthed in southern England believed to be those of 1,000-year-old Vikings, scientists said Friday.
View ArticleTeam first to directly measure body temperatures of extinct vertebrates
Was Tyrannosaurus rex cold-blooded? Did birds regulate their body temperatures before or after they began to grow feathers? Why would evolution favor warm-bloodedness when it has such a high energy cost?
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