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The accretion disks around super-massive black holes: do they really exist?
Active Galactic Nuclei (AGN) and quasars (QSO) are the most luminous objects in the sky. These are powered by accretion of interstellar gas onto a supermassive black hole (BH) of about 100 millions solar masses which stands at the center of galaxies. For Seyfert galaxies, a few tenths of solar... view more (2001-04-17)

Galaxy Cluster Takes It to the Extreme
Evidence for an awesome upheaval in a massive galaxy cluster was discovered in an image made by NASA's Chandra X-ray Observatory. The origin of a bright arc of ferociously hot gas extending over two million light years requires one of the most energetic events ever detected.   view more (2007-05-31)

Rovers begin new observations on changing Martian atmosphere
Mars rover scientists have launched a new long-term study on the Martian atmosphere with the Alpha Particle X-ray Spectrometer, an instrument that was originally developed at the University of Chicago.   view more (2007-08-30)

Chandra discovers light echo from the Milky Way's Black Hole
Like cold case investigators, astronomers have used NASA's Chandra X-ray Observatory to uncover evidence of a powerful outburst from the giant black hole at the Milky Way's center.   view more (2007-01-11)

Mysterious cosmic rays linked to galactic powerhouses
The sprawling Auger Cosmic Ray Observatory in South America has produced its first major discovery while still under construction.   view more (2007-11-09)

X-rays Often Repeated for Patients in Developing Countries
Patients in developing countries often need to have X-ray examinations repeated so that doctors have the image quality they need for useful medical diagnosis, the IAEA is learning. The findings come from a survey involving thousands of patients in 45 hospitals and 12 countries of Africa, Asia and... view more (2008-05-29)

Key heart and Alzheimer's disease protein imaged for first time in native state
Researchers for the first time have created a three-dimensional image of apolipoprotein E, a protein long associated with cardiovascular disease and more recently with Alzheimer's disease, as it appears when it is bound to fat-like substances known as lipids.   view more (2006-01-16)

X-Ray Tomography Pioneer Rewarded
The University of Surrey awards an annual Enterprise and Innovation Prize for outstanding contributions by staff in facilitating interaction between the business community and the University. This year, in recognition of the strengths of applications in both areas, the Prize Committee decided to... view more (2003-02-05)

UK astronomers take control of the time domain
Although there are numerous telescopes - both large and small - examining the night sky at any one time, the heavens are so vast and so densely populated with all manner of exotic objects that it is extremely easy to overlook a significant random event. Fortunately, a new generation of scientific... view more (2004-02-09)

Patients now surviving once-fatal immune disease
Individuals who have a rare genetic immune system disorder that prevents them from making antibodies nevertheless appear to be moderately healthy and lead productive lives.   view more (2006-01-16)

Alloy of hydrogen and oxygen made from water
Water, the only indispensable ingredient of life, is just about the most versatile stuff on Earth. Depending on its temperature we can heat our homes with it, bathe in it, and even strap on skates and glide across it, to name only the most common of its many forms. When subjected to high pressures,... view more (2006-10-27)

Food Supplementation With Folic Acid Could Substantially Reduce Neural-Tube Defects (p 2047)
A public-health initiative to enrich cereal grain foods in Canada with folic acid has halved the prevalence of neural-tube defects among both unborn and newborn children, report authors of a research letter in this week's issue of THE LANCET. Folic acid tablet supplementation around the time of... view more (2002-12-18)

The Wild, Hidden Cousin of SN 1987A
Over a decade after it exploded, one of the nearest supernovae in the last 25 years has been identified. This result was made possible by combining data from the vast online archives from many of the world's premier telescopes.   view more (2008-09-26)

NIST reference materials are 'gold standard' for bio-nanotech research
The National Institute of Standards and Technology (NIST) has issued its first reference standards for nanoscale particles targeted for the biomedical research community-literally "gold standards" for labs studying the biological effects of nanoparticles.   view more (2008-01-10)

MIT: Spinning black hole leaves dent in space-time
MIT scientists and colleagues have found a black hole that has chiseled a remarkably stable indentation in the fabric of space and time, like a dimple in one's favorite spot on the sofa.   view more (2006-01-11)

New technique reduces radiation exposure by 60 percent in abdominal CT of children
By lowering the tube current to account for both the weight and body symmetry of a child, an abdominal CT radiation dose can be reduced by 60% without compromising the image quality.   view more (2006-05-02)

40 Years of Research with Synchrotron Radiation at DESY
On Wednesday, May 19, starting at 1.30 p.m., the DESY research center will celebrate the anniversary of a very special kind of light: For 40 years, scientists have been conducting research with so-called synchrotron radiation at DESY - i.e. light with exceptional properties generated at... view more (2004-05-19)

Filming an ultra-fast biological reaction essential to life
A team of scientists from the USA in collaboration with staff at the European Synchrotron Radiation Facility1 (Schotte et al) have managed to film a protein at work in unprecedented detail. The protein is the oxygen-storing molecule myoglobin, which plays a central role in the production of energy... view more (2003-06-24)

Possible closest neutron star to Earth found
Using NASA's Swift satellite, McGill University and Penn State University astronomers have identified an object that is likely one of the closest neutron stars to Earth -- and possibly the closest.   view more (2007-08-21)

Researchers rely on Newton's interference for new experiment
Most people think of Sir Isaac Newton as the father of gravity. But for Lawrence Livermore National Laboratory physicist Henry Chapman and his colleagues, Newton's "dusty mirror" experiment served as a launching pad for them to keenly watch the X-ray induced explosion of microscopic... view more (2007-08-09)

Stars Form Surprisingly Close to Milky Way's Black Hole
NASA's Chandra X-ray Observatory revealed a new generation of stars spawned by a super-massive black hole at the center of the Milky Way galaxy.   view more (2005-10-14)

Blacksmith’s secret revealed
In an international study into the fine structure of steel, Technology Foundation STW researchers have revealed how strong steel is formed. By analysing red-hot steel with an x-ray microscope, the researchers discovered how at a temperature of 900 oC, numerous microscopic crystals suddenly... view more (2002-11-15)

NASA: Major Step Toward Knowing Origin of Cosmic Rays
Recent observations from NASA and Japanese X-ray observatories have helped clarify one of the long-standing mysteries in astronomy -- the origin of cosmic rays.   view more (2007-10-10)

Tycho's Remnant Provides Shocking Evidence for Cosmic Rays
Astronomers have found compelling evidence that a supernova shock wave has produced a large amount of cosmic rays, particles of mysterious origin that constantly bombard the Earth.   view more (2005-09-23)

Experts from University of Leicester in Beagle 2 project
The University of Leicester Department of Physics and Astronomy has one of the largest space research centres of its kind in Europe. The University was co-founder of the £52million National Space Centre and is one of the principal partners in the Beagle 2 Project. For background information... view more (2003-12-23)
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