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Zero-Gravity Experiments
September 2, 2011 — Researchers will be floating high above the Gulf of Mexico this month to conduct zero-gravity testing of an experimental DNA analysis instrument that could benefit future NASA ... > full story -
Physicists Capture Microscopic Origins of Thinning and Thickening Fluids
September 1, 2011 — In things thick and thin: Physicists now explain how fluids -- such as paint or paste -- behave by observing how micron-sized suspended particles dance in real time. Using high-speed microscopy, the ... > full story -
NASA's Chandra Finds Nearest Pair of Supermassive Black Holes
September 1, 2011 — Astronomers using NASA's Chandra X-ray Observatory discovered the first pair of supermassive black holes in a spiral galaxy similar to the Milky Way. Approximately 160 million light years from Earth, ... > full story -
Experts Offer Pointers for Optimizing Radiation Dose in Chest CT
September 1, 2011 — A new article summarizes methods for radiation dose optimization in chest computed tomography (CT) scans. Chest CT is the third most commonly performed CT examination, frequently used to diagnose the ... > full story -
Discovery Sheds Light on the Ecosystem of Young Galaxies
August 29, 2011 — A team of scientists has discovered a distant galaxy that may help elucidate two fundamental questions of galaxy formation: How galaxies take in matter and how they give off energetic ... > full story -
New X-Ray Technique for Electronic Structures: Ability to Probe Deep Below Material Surfaces Should Be Boon for Nanoscale Devices
August 25, 2011 — Researchers have led the development of a technique called HARPES, for Hard X-ray Angle-Resolved PhotoEmission Spectroscopy, that enables the study of electronic structures deep below material ... > full story -
Experiment Provides Unprecedented Insight Into Cloud Formation
August 25, 2011 — Researchers are reporting the first results of CERN's CLOUD experiment, designed to study the effect of cosmic rays on the formation of atmospheric aerosols -- tiny liquid or solid particles ... > full story -
How a Distant Black Hole Devoured a Star
August 24, 2011 — Astronomers have provided new insights into a cosmic accident that has been streaming X-rays toward Earth since late March. NASA's Swift satellite first alerted astronomers to intense and unusual ... > full story -
Physicians' Exposure to Radiation Prompt Cellular Changes That May Protect the Body from Harm
August 23, 2011 — Cardiologists who perform heart operations using X-ray guided catheters are exposed to ionizing radiation at levels two to three times higher per year than those experienced by radiologists. Now, new ... > full story -
Melanin's 'Trick' for Maintaining Radioprotection Studied
August 23, 2011 — Researchers have made new insights into the electrochemical mechanism that gives the complex polymer known as melanin its long-term ability to protect some species from ionizing radiation, with a ... > full story
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