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Ghost Remains After Black Hole Eruption
NASA's Chandra X-ray Observatory has found a cosmic "ghost" lurking around a distant supermassive black hole. This is the first detection of such a high-energy apparition, and scientists think it is evidence of a huge eruption produced by the black hole. view more (2009-05-29)
Scientists close in on source of X-rays in lightning
University of Florida and Florida Institute of Technology engineering researchers have narrowed the search for the source of X-rays emitted by lightning, a feat that could one day help predict where lightning will strike. view more (2008-07-16)
Auger Observatory links highest-energy cosmic rays with violent black holes
Scientists of the Pierre Auger Collaboration, which includes New York University Physics Professor Glennys R. Farrar, have concluded that active galactic nuclei are the most likely candidate for the source of the highest-energy cosmic rays that hit Earth. view more (2007-11-09)
Searching the heavens
A new space mission, due to launch this month, is going to shed light on some of the most extreme astrophysical processes in nature - including pulsars, remnants of supernovae, and supermassive black holes. view more (2008-05-01)
Universe's oldest objects emerge from the background
The deepest reaches of space are permeated by a cloak of infrared radiation, an uneven energy swath generated by long-dead objects from the early universe. view more (2006-12-20)
First simultaneous observation of a gamma-ray burst in the X-ray and in the very high energy gamma ray band
For the first time a gamma-ray burst (GRB) has been observed simultaneously in the X-ray and in the very high energy gamma ray band. view more (2005-08-24)
Scoliosis in children detectable with ordinary light
Lateral curvature of the spine can now be detected without the use of X-rays. Tom Huysmans of K.U.Leuven's Department of Biomechanics and Graphic Design has developed a technique using ordinary light which approaches the precision of radiology. The technique is important for research into scoliosis, a spinal column deformity affecting 2% of... view more... (2004-06-11)
UK study quantifies cancer risk from diagnostic X-rays (pp 340, 345)
The most detailed calculation of its kind to estimate the risk of cancer from exposure to diagnostic X-rays is published in this week's issue of THE LANCET. It suggests that in the UK around 700 of the 124,000 cases of cancer diagnosed annually could be attributable to exposure to diagnostic X-rays. Diagnostic X-rays (used in conventional... view more... (2004-01-28)
Integral identifies supernova rate for Milky Way
Using ESA's Integral observatory, an international team of researchers has been able to confirm the production of radioactive aluminium (Al 26) in massive stars and supernovae throughout our galaxy and determine the rate of supernovae-one of its key parameters. view more (2006-01-09)
Cosmologists aim to observe first moments of universe
During the next decade, a delicate measurement of primordial light could reveal convincing evidence for the popular cosmic inflation theory, which proposes that a random, microscopic density fluctuation in the fabric of space and time gave birth to the universe in a hot big bang approximately 13.7 billion years ago. view more (2009-02-17)
MAGIC discovers variable very high energy gamma-ray emission from a microquasar
In a recent issue of Science Magazine, the Major Atmospheric Gamma-ray ImagingCherenkov (MAGIC) Telescope has reported the discovery of variable very high energy (VHE) gamma-ray emission from a microquasar. view more (2006-05-19)
Life hitching a ride to Earth: Bugs could travel to Earth in comfort aboard Martian meteorites
FOR the first time, millions of bacterial spores have been purposely exposed to outer space, to see how they are affected by solar radiation. The results support the idea that life could have arrived on Earth in the form of bacteria carried from Mars on meteorites. The idea that life started... view more... (2002-01-09)
Tiny diamonds on Santa Rosa Island give evidence of cosmic impact
Nanosized diamonds found just a few meters below the surface of Santa Rosa Island off the coast of Santa Barbara provide strong evidence of a cosmic impact event in North America approximately 12,900 years ago. view more (2009-07-22)
Possible cosmic defect may be a window into the early universe
An unusual cold spot in the oldest radiation in the universe, the cosmic microwave background, may be caused by a cosmic defect created just after the Big Bang, a Spanish and U.K. research team has found. view more (2007-10-26)
Superstrings could add gravitational cacophony to universe's chorus
Albert Einstein theorized long ago that moving matter would warp the fabric of four-dimensional space-time, sending out ripples of gravity called gravitational waves. No one has observed such a phenomenon so far, but University of Washington researchers believe it is possible to detect such waves coming from strange wispy structures called cosmic... view more... (2007-01-09)
Argonne scientists use lasers to align molecules
Protein crystallographers have only scratched the surface of the human proteins important for drug interactions because of difficulties crystallizing the molecules for synchrotron x-ray diffraction. view more (2008-05-14)
Examination of radiation left from birth of universe could alter theories
Using relic radiation from the birth of the universe, astrophysicists at the University of Illinois have proposed a new way of measuring the fine-structure constant in the past, and comparing it with today. view more (2007-04-03)
NASA Balloon Mission Tunes in to a Cosmic Radio Mystery
Listening to the early universe just got harder. A team led by Alan Kogut of NASA's Goddard Space Flight Center in Greenbelt, Md., today announced the discovery of cosmic radio noise that booms six times louder than expected. view more (2009-01-08)
Unusual views of the Sun
For centuries, we have worshipped it and wondered at it, but it`s only now that we are getting a really good look at it. Although you can`t gaze at the Sun with the naked eye, thanks to modern science we can view images of our nearest star that confirm the fiery glory our ancestors could only imagine. Today, our views of the Universe are many... view more... (2002-05-21)
ESA steps towards a great black hole census
Astronomers using ESA's orbiting gamma-ray observatory, Integral, have taken an important step towards estimating how many black holes there are in the Universe. view more (2006-09-08)
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