nov 282012
 
Experiment Shines New Light on Giant Planets and White Dwarfs

  An international team led by researchers from the University of Warwick and Oxford University is now dealing with unexpected results of an experiment with strongly heated graphite (up to 17,000 degrees Kelvin). The findings may pose a new problem for physicists working in laser-driven nuclear fusion and may also lead astrophysicists to revise our [continue reading]

jul 092012
 
Researchers Create “MRI” of the Sun’s Interior

  A team of scientists has created an “MRI” of the Sun’s interior plasma motions, shedding light on how it transfers heat from its deep interior to its surface. The result, which appears in the journal the Proceedings of the National Academy of Sciences, increases our understanding of how heat is transported outwards by the Sun [continue reading]

apr 302012
 
Astronomers Detected Arsenic And Selenium In An Ancient Star

  The Big Bang produced lots of hydrogen and helium and a smidgen of lithium. All heavier elements found on the periodic table have been produced by stars over the last 13.7 billion years. Astronomers analyze starlight to determine the chemical makeup of stars, the origin of the elements, the ages of stars, and the [continue reading]

mrt 102012
 
NASA's RXTE captures thermonuclear behavior of unique neutron star

Caption: This graph based on RXTE data provides an overview of the changing character of T5X2’s X-ray emission during outbursts from Oct. 13 to Nov. 19, 2010. As the persistent X-ray emission rises (upward steps in the plot), the burst rate increases while the burst brightness decreases. The abrupt dropout on Oct. 13 occurred when [continue reading]