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Home > News > Tags > X-rays
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A device that has the potential to save lives and bring about a revolution in X-ray astronomy is currently being developed by a team of experts from the American space agency. The group got inspired to create the instrument after studying the underlying structure of lobster eyes.
The new technology closely mimics th... |
18 May 2012
03:51 GMT |
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When stars explode, a cocoon of gas usually develops in their immediate surroundings. Now, a study conducted using the NASA Chandra X-Ray Observatory provides the first direct evidences of a supernova shock wave breaking through this gaseous envelope.
The investigations team analyzed X-ray signals that Chandra dete... |
16 May 2012
03:43 GMT |
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When NASA launches its Nuclear Spectroscopic Telescope Array (NuSTAR) mission, this June, the international scientific community will gain access to the first space-based X-ray observatory that can be focused. Experts expect to get images at least 10 times clearer than possible with current spacecraft.
Managed by sc... |
9 May 2012
07:43 GMT |
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A new paper, to be published in the May 10 issue of the esteemed Astrophysical Journal, details an amazing cosmic event that is currently taking place in the nearby spiral galaxy M83. Investigators discovered an ultraluminous X-ray source, which is part of a mysterious class of black holes.
The new investigation wa... |
2 May 2012
03:01 GMT |
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Electrons, for a long time thought to be elementary particles, can be split into two separate parts, an international team of experts demonstrated in a new study. Each of the two resulting particles carries one of the two most important properties of electrons.
When broken apart, an electron produces a spinon &ndas... |
19 April 2012
03:44 GMT |
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Recent observations conducted using the NASA Chandra X-ray Space Telescope revealed that energetic radiations emanating from Jupiter's northern hemisphere are in fact originating in a single hot spot. In other words, they are not produced over a larger surface area, as originally thought. What's more, the ... |
11 April 2012
16:01 GMT |
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The Astro-H X-ray Telescope reached a critical milestone recently, when officials from the European Space Agency (ESA) and the Japan Aerospace Exploration Agency (JAXA) signed a document cementing their collaboration for this project. The mission is also known as the New X-Ray Telescope, or NeXT. Its main purpose w... |
11 April 2012
03:38 GMT |
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This amazing video is a virtual tour through the Linear Coherent Light Source (LCLS), a free-electron laser installation located at the US Department of Energy's (DOE) SLAC National Accelerator Laboratory. The facility can produce X-rays of extreme intensities.
The LCLS shot its first laser beam through its lo... |
4 April 2012
10:49 GMT |
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A series of new investigations were recently able to provide a new insight into how a class of dramatic cosmic explosions, called Type Ia supernovae, occurs. Researchers identified three scenarios that might help explain these phenomena. For this study, scientists at the NASA Goddard Space Flight Center (GSFC) used... |
21 March 2012
03:25 GMT |
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An international collaboration of scientists, led by investigators at VU University Amsterdam, say that the Moon has no volcanoes because its mantle – the layer of liquefied rocks underneath the crust – is extremely dense, and cannot rise towards the surface.
On Earth, volcanoes mostly form where tecton... |
21 February 2012
05:45 GMT |
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The most powerful X-ray laser in the world recently managed to set a new record, when it heated a piece of target material to 2 million degrees. The achievement is reported in the January 25 issue of the top scientific journal Nature.
U.S. Department of Energy’s (DOE) SLAC National Accelerator Laboratory phys... |
26 January 2012
07:14 GMT |
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After providing scientists with new insights into the nature of environments surrounding some of the weirdest structures in the Universe, the NASA Rossi X-ray Timing Explorer (RXTE) spacecraft was finally retired from active duty on January 5, after 16 years of service.
The probe far exceeded its planned lifespan, a... |
11 January 2012
02:31 GMT |
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An international group of astronomers, using multiple telescopes, was recently able to collect an impressive view of the Ring of Fire at the core of the spiral galaxy NGC 4151. The formation looks mesmerizing, and represents one of the clearest views of this region ever collected.
This is obviously a composite imag... |
27 December 2011
09:29 GMT |
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Recent studies of the galactic core have revealed that a medium-sized gas cloud is rapidly heading towards Sagittarius A*, the supermassive black hole that is powering up the Milky Way. When the two collide, massive cosmic fireworks will ensue.
Studies of the feature were conducted in infrared wavelengths, because t... |
15 December 2011
06:50 GMT |
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Concrete made with Portland cement is the second-most used material in the world by volume, exceeded only by water. Its production process releases massive amounts of carbon dioxide, and so replacing it requires a deeper understanding of its structure at the nanoscale.
This was the purpose of a new study conducted ... |
13 December 2011
04:34 GMT |
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One of the things that has been puzzling astrophysicists concerning Sagittarius A* – the massive black hole at the center of the Milky Way – is its seeming lack of activity, when compared to similar objects in other galaxies. Now, experts are analyzing what would happen if the black hole were to wake up.
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5 December 2011
05:00 GMT |
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The American space agency could finally approve the development of the Neutron Star Interior Composition Explorer (NICER), a new spacecraft that will be destined to study neutron stars. The probe is currently still just a proposal, but arguments in its favor are multiplying.
The deputy principle investigator of the... |
10 November 2011
04:00 GMT |
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During a fiery reentry that ripped it to pieces, the German-built Roentgen Satellite (ROSAT) came crashing down to Earth on Saturday, October 22. Astronomers tracking its reentry path are not yet sure where the spacecraft debris landed. ROSAT has been “dead” for about ten years, languishing in a slowly-de... |
24 October 2011
02:32 GMT |
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Astronomers operating the NASA Chandra X-Ray Observatory (CXC) have just released a new image of the beautiful Carina Nebula, a cosmic formation located about 7,500 light-years away. The object lies within the Sagittarius-Carina arm of our galaxy, the Milky Way.
According to the latest X-ray measurements, the nebu... |
15 October 2011
04:39 GMT |
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A group of astrophysicists is now proposing that black holes may create vast amounts of radiation as they explode. These amounts may be entirely proportional with their mass, and the leftovers would be released into the Universe as their precursor black holes explode.
These proposals are based on results collecte... |
22 September 2011
07:04 GMT |
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The results of a new astronomical investigation demonstrate that a nearby star is drenching the surface of its host extrasolar planet with massive amounts of X-ray radiations, about 100,000 times higher than what the Sun throws at us.
This is a very significant discovery, as it paints the interactions between exo... |
14 September 2011
03:58 GMT |
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In late March, astronomers began observing a new source of X-rays in the night sky. After monitoring the event for a while, they were able to conclude that they were witnessing the reawakening of a black hole. The process takes place as the massive object is consuming a nearby star.When the first signs of the event w... |
25 August 2011
04:20 GMT |
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Astrophysicists recently conducted a new investigation of a special class of objects in the Universe, called active galactic nuclei. They focused on a specific class of AGN, and were able to determine some interesting behaviors radiation emissions exhibit in close proximity to the structures.Using the European Space ... |
4 August 2011
09:26 GMT |
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A team of investigators announces the discovery of a massive, ring-like structure surrounding the large galaxy supercluster Abell 3376. The formation provides additional insights into how such large space objects form and keep themselves together.In order to peer deep into the Universe – and get as much resolut... |
25 July 2011
04:42 GMT |
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In the near future, astronomers could become able to conduct in-depth studies of supermassive stars that may have existed at the fringes of the early Universe. These objects may have been the progenitors of what would become the first supermassive black holes ever to exist. Instruments such as the NASA James Webb Spa... |
18 July 2011
05:03 GMT |
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Astronomers with the European Space Agency say that recent data provided by the ESA XMM-Newton space telescope indicate the existence of an unusual cosmic phenomenon. The readings show that a neutron star tried to gobble up a large chunk of matter, but failed to do so. Usually, when viewed in the X-ray wavelengths at... |
28 June 2011
08:53 GMT |
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Scientists at the Ohio State University (OSU) found that heavy metals including iron are capable of emitting low-energy electrons, if they are exposed to X-ray wavelengths of specific energies. The discovery was made as the team was investigating stars and black hole, trying to determine how chemical elements emit an... |
27 June 2011
05:26 GMT |
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For the better part of 50 years, astronomers have been analyzing and studying a binary system they discovered by accident during an early rocket flight. Cygnus X-1 has since become maybe the most studied object in the Universe, and even now experts are learning new thing about it. The massively-strong X-ray source &n... |
23 June 2011
09:21 GMT |
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A group of experts in the United States announces the development of a new method for detecting liver cancer, which they say could help oncologists discover the disease earlier on than currently possible. The approach can detect cancer tumors that are as small as 5 millimeters, a significant improvement from other av... |
23 June 2011
04:39 GMT |
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According to a new scientific study, it would appear that the first black holes to develop in the early Universe – in the central regions of young galaxies – were even more difficult to spot than their more modern counterparts. They were obscured by clouds of cosmic dust and hydrogen gas. For many years, ... |
16 June 2011
04:36 GMT |
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In a unique discovery, researchers managed to identify a pair of extrasolar planets locked in a dance around each other. While this is not remarkable in itself, it becomes so when taking into account the fact that the system orbits a pair of stars, which are themselves locked in a binary system.The two planets are bo... |
15 June 2011
05:05 GMT |
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Astrophysicists are convinced that there is something they are not seeing in the Cosmos: a source for the X-ray background that dedicated telescopes are observing. Now, they propose that black holes smothered in dust, hidden at the cores of active, but undetected galaxies, are responsible for this. This pro... |
13 May 2011
14:11 GMT |
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In a new study, experts were finally able to determine the power source that is heating up that gas filaments spawned by the elliptical galaxy NGC 1275. This has been the focus of studies for quite some time now, but results thus far have been conflicting.Over years of study, astronomers have discovered that certain ... |
11 May 2011
04:46 GMT |
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Astronomers looking for massive stars in the Milky Way believe they may have finally found a population of these immense objects near the galactic plane. Experts have been looking for them using a large number of X-ray and infrared observatories.
The thing about such a population of stars is that they release mas... |
16 April 2011
04:39 GMT |
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Experts in Japan recently unveiled the first X-ray Free Electron Laser (XFEL) in the country, and only the second such facility in the entire world. Called SACLA, the laser is the result of a cooperative effort between two major Japanese research centers. Scientists with the natural sciences research institute R... |
11 April 2011
07:34 GMT |
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An amazing new image collected by the NASA Chandra X-ray Observatory has determined the existence of an interesting pattern of X-ray stripes inside the Tycho supernova remnant. This is the first time such structures are found in these cosmic leftovers. Remnants are produced after massive stars reach the end of their ... |
25 March 2011
09:55 GMT |
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Scientists have taken the first steps towards understanding the reason why the late B to mid A classes of stars emit radiation in the X-ray portion of the electromagnetic spectrum, when they shouldn't theoretically be capable of doing this. Most types of main sequence stars produce these radiations, and, in some... |
25 March 2011
09:12 GMT |
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Detailed analysis of one of the most studied black holes ever revealed that the object is warping space and time around it. The data also provided critical insight into the strength of the magnetic fields surrounding the cosmic structure. Cygnus X-1 is one of the most powerful X-ray sources in the known Universe. Tip... |
25 March 2011
04:31 GMT |
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Astronomers identified a black hole in space that looks remarkably similar to the Eye of Sauron, as seen in the Lord of the Rings. They say that this cosmic structure could teach them a thing or two about the evolution of black holes, and also about the way they interact with their surroundings. The structure is loca... |
12 March 2011
06:12 GMT |
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Scientists operating one of the most sensitive telescopes in Earth's orbit announced recently that they were able to discover the existence of free-floating magnetic fields around galaxies, and even galactic clusters. The experts say these structures resemble the magnetic field around our planet.This is a very i... |
2 February 2011
10:34 GMT |
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According to the conclusions on a new scientific study, it would appear that children are exposed to too high amounts of radiation during three-dimensional X-ray investigations. Orthodontists prefer the 3D version of the imaging method over its 2D counterpart, even if it exposes the kids to more radiation.
Exposin... |
29 January 2011
21:01 GMT |
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The Cosmic X-ray Background (CXRB) permeates the Universe, and some of its sources have been known for years. But it's only know that astrophysicists manage to confirm an older theory, showing that hidden black holes are partially responsible for the background's existence.Investigators say that supermassiv... |
21 January 2011
08:13 GMT |
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One would be tempted to think that if we use a technology, then we must understand how it works. This is sadly not true all of the time, as evidenced by the fact that we have been using DVDs for years, without knowing how exactly the storage mechanism functions. A new study finally clears that up. Putting your favo... |
10 January 2011
06:06 GMT |
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A group of astronomers using some of the most advanced telescopes in the world were recently able to discover a cosmic structure that has about the same size as our massive galaxy, the Milky Way, without being a galaxy or a cluster. Scientists say that the formation is made up of gas jets and other emissions coming i... |
3 January 2011
09:03 GMT |
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In their studies of the universe, astronomers have found a large number of black holes of various shapes, sizes and types, but they have always been fascinated about why some of these dark behemoths are so much more active than others. A new study sheds some light on the possible answers. One of the things setting a... |
23 December 2010
03:30 GMT |
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A group of physicists from the Florida Institute of Technology (Florida Tech) recently managed a breakthrough in this field of research, when they were able to collect the first-ever 3D images of a lightning strike. This has never been done before. In addition to being able to snap images in the X-ray portion of the ... |
15 December 2010
10:28 GMT |
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In their investigations of a very distant galactic cluster, astronomers managed to determine that an impressive quasar lies at the very core of the structure, surrounded by a bright envelope of relatively cool gas. The quasi-stellar radio source (quasar) is called 3C 186, and it was discovered using the American spac... |
28 October 2010
04:08 GMT |
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Just recently, two research groups identified a new source of bright X-ray emissions in our galaxy, the Milky Way. The radiation comes from a binary system that was until now hidden in the constellation Centaurus. A binary system is basically a pair of stars, in which either one of the bodies rotates around a more ma... |
25 October 2010
06:04 GMT |
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An international group of researchers announce the development of a new generation of high-energy, synchrotron X-ray sources, which are so small that they can be used on a scientific lab bench.Tightly-focused X-ray beams are of paramount importance in science today, as they are widely employed in a variety of practic... |
25 October 2010
04:00 GMT |
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For many years, astrophysicists have had a hard time explaining why a binary star system located in the galaxy Messier 33 exists. The system is formed from a massive star, which is orbited by a large black hole. Generally, if black holes exist in binary systems, they tend to have a maximum mass of about 10 Suns, but ... |
21 October 2010
02:51 GMT |
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