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Heavy Metal Stars: La Silla Telescope Detects Lots of Lead in Three Distant Binaries
Very high abundances of the heavy element Lead have been discovered in three distant stars in the Milky Way Galaxy. This finding strongly supports the long-held view that roughly half of the stable elements heavier than Iron are produced in common stars during a phase towards the end of their life when they burn their Helium - the other half... view more... (2001-08-21)
High-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 reliability are simultaneously obtained in tokamaks, the leading magnetic confinement fusion device, operating at their performance limits. view more (2009-11-03)
Discovery of the chemically oldest star in the Milky Way
During the last 30 years researchers have tried to find stars that still carry vestiges of the very origin of the Milky Way Galaxy, when it formed from a gigantic collection of gas soon after the Big Bang. The gas of our galaxy, which was presumably composed of hydrogen and helium at the beginning, is continuously polluted by exploding stars that... view more... (2002-10-31)
New MRI technique shows emphysema in asymptomatic smokers
A new imaging method has revealed early signs of emphysema in smokers with no external symptoms of the disease, according to a study published in the June issue of Radiology. view more (2006-05-30)
New recipe for dwarf galaxies: Start with leftover gas
There is more than one way to make a dwarf galaxy, and NASA's Galaxy Evolution Explorer has found a new recipe. view more (2009-02-19)
The quiet explosion
A European-led team of astronomers are providing hints that a recent supernova may not be as normal as initially thought. Instead, the star that exploded is now understood to have collapsed into a black hole, producing a weak jet, typical of much more violent events, the so-called gamma-ray bursts. view more (2008-07-25)
The Universe, seen under the Gran Sasso mountain, seems to be older than expected
Some nuclear fusion reactions inside stars occur more slowly than we thought and, as a consequence, stars themselves, as well as galaxies and the entire universe are a bit older than expected. This is what comes out from the last results of Luna experiment (Laboratory for Underground Nuclear astrophysics), settled by National Laboratories of Gran... view more... (2004-05-13)
Argonne scientists develop way to predict properties of light nuclei
Scientists have spent 70 years trying to predict the properties of nuclei, but have had to settle for approximate models because computational techniques were not equal to the task. view more (2008-05-22)
Simply weird stuff: Making supersolids with ultracold gas atoms
Physicists at the Joint Quantum Institute (JQI) of the National Institute of Standards and Technology (NIST) and the University of Maryland have proposed a recipe for turning ultracold "boson" atoms-the ingredients of Bose-Einstein condensates-into a "supersolid," an exotic state of matter that behaves simultaneously as a solid... view more... (2009-01-14)
The Invisible Galaxies That Could Not Hide
Astronomers, using the unique capabilities offered by the high-resolution spectrograph UVES on ESO's Very Large Telescope, have found a metal-rich hydrogen cloud in the distant universe. The result may help to solve the missing metal problem and provides insight on how galaxies form. view more (2006-02-16)
A Glimpse of the Young Milky Way
VLT UVES Observes Most Metal-Deficient Star Known [1] A faint star in the southern Milky Way, designated HE 0107-5240, has been found to consist virtually only of hydrogen and helium. It has the lowest abundance of heavier elements ever observed, only 1/200,000 of that of the Sun - 20 times less than the previous record-holding star.... view more... (2002-10-28)
Physicists set 'speed limit' for future superconducting magnet
A research team led by a Northwestern University physicist has identified a high-temperature superconductor — Bi-2212, a compound containing bismuth — as a material that might be suitable for the new wires needed to one day build the most powerful superconducting magnet in the world, a 30 Tesla magnet. view more (2007-02-12)
Engineers rescue aging satellites, saving millions
Researchers have used a new technique to save $60 million for broadcasters by extending the service life of two communications satellites. view more (2007-09-06)
The world's largest particle accelerator has been completed
The last quadripolar magnet was brought down into the tunnel of the world's largest particle accelerator; the CERN's1 LHC, or Large Hadron Collidor. view more (2007-04-02)
Princeton scientists confirm long-held theory about source of sunshine
Scientists are a step closer to understanding sunshine. A monumental experiment buried deep beneath the mountains of Italy has provided Princeton physicists with a clearer understanding of the sun's heart -- and of a mysterious class of subatomic particles born there. view more (2007-08-21)
Fermions do not travel together, theory proved
Fermions tend to avoid each other and cannot "travel" in close proximity. Demonstrated by a team at the Institut d'optique (CNRS/Université Paris 11, Orsay-Palaiseau), this result is described in detail in the January 25, 2007 issue of Nature. It marks a major advance in our understanding of phenomena at a quantum scale. view more (2007-03-12)
New element found to be a superconductor
Of the 92 naturally occurring elements, add another to the list of those that are superconductors. view more (2009-05-18)
Scientist refines cosmic clock to determine age of Milky Way
The University of Chicago's Nicolas Dauphas has developed a new way to calculate the age of the Milky Way that is free of the unvalidated assumptions that have plagued previous methods. view more (2005-06-30)
Sussex scientist becomes Fellow of the Royal Society
A University of Sussex chemistry professor has been elected a Fellow of the Royal Society (FRS), the premier honour for British and Commonwealth scientists. The Royal Society – the UK’s national academy for science – announced yesterday that Professor Tony Stace, from Lewes, is one of 42 new Fellows. view more (2002-05-14)
Computer models suggest planetary and extrasolar planet atmospheres
The world is abuzz with the discovery of an extrasolar, Earth-like planet around the star Gliese 581 that is relatively close to our Earth at 20 light years away in the constellation Libra. view more (2007-06-20)
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