|
Home > News > Tags > ultraviolet
|
|
30
Stories about: ultraviolet |
|
|
Covering more than 3 degrees of the night sky – more than three times the size of the full Moon, the Cygnus Loop is a large supernova remnant located in the constellation Cygnus (the Swan).
This amazing image of the object – also known as W78 and Sharpless 103 – was collected by the NASA Galaxy Evo... |
26 March 2012
10:24 GMT |
 |
|
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 |
|
|
According to a new scientific paper published in the March 9 issue of the top journal Science, a new type of polymer is perfectly capable of creating 3D structures, once it's submerged in water. The material originally comes as sheets, its developers say. University of Massachusetts Amherst (UMA) investigators ... |
9 March 2012
02:54 GMT |
|
|
Neustar Media, the company that’s responsible for developing the technology behind the now controversial UltraViolet Digital Right Management (DRM) system, unveiled its plans to revive it, but not by considering it an entirely new system, but by distributing content from the cloud using existing solutions.
Aft... |
8 December 2011
08:31 GMT |
|
|
Experts operating the NASA Swift Gamma-Ray Burst Mission pointed the satellite towards the aircraft carrier-sized asteroid 2005 YU55 on Wednesday, November 9. This was when the space rock flew closest to Earth during its latest flyby.
Numerous professional and amateur telescopes were trained on the asteroid, but th... |
11 November 2011
05:54 GMT |
|
|
Leading semiconductor manufacturers and experts at the US Department of Energy’s (DOE) Lawrence Berkeley National Laboratory (Berkeley Lab) have recently joined forces to create a microscope capable of conducting photolithography, one of the most important aspects of creating microchips.
The purpose of this... |
29 October 2011
04:49 GMT |
|
|
Using the Chile-based Very Large Telescope (VLT), a group of international astronomers was able to produce the first timeline of what happened during a time in the Universe's history known as the reionization epoch. For starters, the team learned that this event occurred a lot sooner than first thought.
Durin... |
12 October 2011
08:45 GMT |
|
|
A new water disinfection technique developed by experts in the United States could be used to quench the thirst of more than 800 million people around the planet, who currently do not have access to clean water sources. The method was developed at the Purdue University, in Indiana.
The prototype water-disinfection... |
29 September 2011
03:43 GMT |
|
|
A study conducted on unsuspecting lab mice shows that the human papillomavirus (HPV) may play a role in allowing nonmelanoma skin cancers to develop faster than they normally would. The results are very troublesome, considering the widespread nature of HPV infections. Few people know that HPV vaccines exist, and that... |
20 July 2011
09:24 GMT |
|
|
Much to their surprise, climate scientists keeping an eye on the hole that developed in the ozone layer above Antarctica noticed that the gap is beginning to close. This is remarkable because the process is taking place a decade earlier than scientists first calculated any effect would be visible.
Studies conduct... |
14 May 2011
05:36 GMT |
|
|
Since astronomers first discovered supernova events and dwarf galaxies, they were surprised to learn that a very large portion of these tremendously energetic explosions were occurring in the smallest galaxies around. Scientists behind a new study believe they are close to figuring out why this is.They are using the ... |
22 April 2011
10:49 GMT |
|
|
Investigators with the European Southern Observatory (ESO) recently managed to snap an interesting view of the stellar nursery called NGC 3582, which is located in the larger RCW 57 star-forming region of the Milky Way. The new image reveals interesting structures within the gas clouds. The tendrils the ESO team obse... |
14 April 2011
10:13 GMT |
|
|
The thinning of the ozone layer above the North Pole – which researchers began monitoring a few years back – is currently about to establish a new record. According to scientists, the layer has diminished significantly from its normal levels, and the trend appears to continue unabated. Generally, the thin... |
17 March 2011
04:15 GMT |
|
|
In a new scientific study, researchers propose for the first time that the mercury cycle taking place in the Arctic and adjacent areas may have a direct influence on the ice cover extent at and around the North pole. These conclusions were derived from a multi-year joint research effort. The chemical cycles through t... |
22 January 2011
05:48 GMT |
|
|
A new finding shows that massive galaxies that are extremely old can be infused with new “life.” Researchers identified massive rings of ultraviolet light surrounding them, and say that these structures represent a “second lease on life” for the aging space formations.These rings, which are on... |
12 August 2010
04:46 GMT |
|
|
Many people know that, during the summer time, using sunscreen is a great way of taking care of their skin. Sunlight also contains ultraviolet (UV) radiation in addition to visible light, and this component of the electromagnetic spectrum can cause mutations, and boost the number of skin cancer cases. But, while the ... |
15 June 2010
03:30 GMT |
|
|
Determining and predicting the nature and behavior of space weather is one of the main goals in astronomy and planetary sciences today. Back in 1985, researchers Ajello and Shemansk published a well-respected document, on which modern interpretations of how space weather influences our planet is based. But new data s... |
8 June 2010
06:44 GMT |
|
|
A large portion of venomous animals, be they mammals, fish, reptiles or insects, are colored in bright hues, which alert potential predators to the dangers they may subject themselves to if they attack. Such is also the case with the bumblebee, which has a fairly strong type of venom. Admittedly not fatal in low dose... |
26 May 2010
16:01 GMT |
|
|
Experts at the American space agency are thrilled to announce that their newest Sun-observing telescope has just finished its post-launch check, which means that it has begun its science mission phase. The major accomplishment was achieved on May 14, when the Solar Dynamics Observatory (SDO), the most advanced spacec... |
19 May 2010
03:57 GMT |
|
|
Scientists at the ETH Zürich in Switzerland have recently determined the existence of a new phase of water in a star-forming region of the Milky Way. The researchers there say that the vapors their analysis revealed have electrical charges, something that has not been observed in nature back on Earth. Generally,... |
8 May 2010
03:43 GMT |
|
|
Scientists at the NASA Jet Propulsion Laboratory (JPL) in Pasadena, California, announce that they will no longer be attempting to conduct scientific observations using both detectors aboard the Galaxy Evolution Explorer. The telescope, which has been orbiting the planet since 2003 and that exceeded its life expectan... |
13 April 2010
03:56 GMT |
|
|
Multiple sclerosis (MS) is a terrible disease that affects millions of people worldwide, and produces devastating consequences for the human body. At this point, there is little researchers can do in terms of finding a cure for this condition, and most course of treatment are aimed at relieving some of the pain assoc... |
23 March 2010
09:55 GMT |
|
|
Experts looking at more than three decades-worth of data have recently concluded that the levels of ultraviolet radiations we were exposed to over the past 30 years had been increasing steadily. However, it would now appear that the trend is starting to level off, largely due to the introduction of the Montreal agree... |
17 March 2010
09:59 GMT |
|
|
Over the course of our evolution, the human brain has become very efficient at telling individuals apart from each other. We rely on facial proportions, hair styles, eyebrow length and other such factors for identifying each of the people we regularly come in contact with as individuals, but our advanced abilities ar... |
26 February 2010
15:21 GMT |
|
|
A new investigation proposes a daring explanation for the wide variety of patterns and wing colors present in the world's butterflies. Researchers say that the insects experienced such an evolution in their ability to see, that regular colors no longer seemed to cut it when it came to mate selection. This was es... |
22 February 2010
19:31 GMT |
|
|
Being exposed to increased amounts of ultraviolet (UV) radiation emanating from the Sun was linked a long time ago to a host of damages that could come to the human eye. According to ophthalmologists, the cornea, conjunctiva and lens of the eye have a great deal to suffer from prolonged exposure to this type of light... |
27 January 2010
14:01 GMT |
|
|
Experts at the University of Notre Dame, in Paris, have recently managed to achieve new heights in nitride semiconductor research. They have been able to produce materials that are far more efficient than existing ones, thus opening the way for a completely new generation of ultraviolet (UV) lasers and light-emitting... |
4 January 2010
04:05 GMT |
|
|
A new scientific study seems to indicate that, in their quest for protection from the harmful effects of UV radiation, people may not have to pay the premium prices regularly associated with sun-protective clothing. Experts have recently determined that opting for clothes dyed in blue or red may be just as effective,... |
15 October 2009
08:52 GMT |
|
|
Experts in the United Kingdom and Germany have recently announced the development of a new drug-delivery method, which relies on microcapsules and ultraviolet light to get the job done. Essentially, the medicine is loaded unto the capsules, which are then steered to their correct destination. The main goal is to avoi... |
8 October 2009
01:29 GMT |
|
|
It's widely known that the Sun functions on an 11-year cycle, varying periods of intense activity and relative stagnation. The human eye is not attuned to observing the differences – when looking at the noon sky, the star looks the same way it always has. We see visible light fairly proficient, but cannot ... |
23 September 2009
06:53 GMT |
|
|
In a new study of the M31 galaxy, our closest galactic neighbor from the Andromeda Constellation, the American space agency's Swift satellite managed to snap the most complex and detailed image of its ultraviolet sources. Experts say that some 20,000 of them are visible in the new, high-resolution picture, and t... |
17 September 2009
01:48 GMT |
|
|
An international group of researchers has recently discovered the fact that banana peels, which may be a clear indicator that the fruits have gone bad on the inside, do not change their aspect as they deteriorate. At least not in visible wavelengths. When researchers placed the peels under ultraviolet (UV) light, the... |
10 September 2009
16:11 GMT |
|
|
Over decades of astronomical observations, experts from around the world have determined that the ratio of small to large stars in the Universe is fixed. They have defined smaller stars as being as large as our Sun or smaller, while larger stars are 20 times or more the mass of the Sun. They have believed that, for e... |
20 August 2009
03:47 GMT |
|
|
The aptly named RCW 38 is one of the densest star clusters known, located some 5,500 light-years away, in the direction of the constellation Vela. The embedded cluster, termed that way because the immensely vast amounts of dust and gas that trigger star formation still envelop developing formations, is one of the str... |
19 August 2009
10:54 GMT |
|
|
NASA has scheduled the fifth and final Hubble Space Telescope repair mission for May 11th, and, at that time, the Atlantis space shuttle will carry its seven-astronaut crew to the 17-year-old observatory, for the final repairs. During the mission, several of Hubble's instruments will be replaced or updated, and,... |
8 May 2009
09:32 GMT |
|
|
The GALEX (Galaxy Evolution Explorer) mission, launched on April 28, 2003, has just turned six years old on the job, mission controllers at NASA rejoice. Located on a nearly circular orbit around the planet, at a height of about 697 kilometers (432 miles), and an inclination of 29 degrees to the Equator, the observat... |
29 April 2009
19:41 GMT |
|
|
A new study performed by a team of scientists led by Dmitry Titov from the Max Planck Institute for Solar System Research and based on images received from the European Space Agency's Venus Express spacecraft revealed the mysterious source of the light and dark bands seen on the planet's surface in ultravio... |
4 December 2008
08:17 GMT |
|
|
Black lights may occasionally be disguised into traditional lighting sources such as incandescent light bulbs or fluorescent tubes, but they function and have different roles than those of ordinary lighting sources. Black lights are mostly used in order to make certain substances or objects 'glow in the dark... |
16 April 2008
07:49 GMT |
|
|
The new neutron detector developed at the National Institute of Standards and Technology is able to measure individual neutrons and their intensities with a sensitivity at least a hundred times higher than that of the traditional neutron detectors. The detector works on the basis of a physical interaction known in th... |
11 March 2008
11:07 GMT |
|
|
Photodiodes represent a type of photodetectors capable of converting light either into current or voltage. They are relatively similar to regular semiconductor diodes, but they may be routinely exposed to ultraviolet or x-ray light. On the other hand, avalanche diodes work on a reverse voltage bias and experience ava... |
29 January 2008
02:51 GMT |
|
|
It is clear that vacuum cleaners have saved us from a lot of effort and time wasted on cleaning our houses. Still, some researches have demonstrated that using this electric appliance too much can decrease the quality of the air we breathe. It appears that the vacuum cleaner expels to the environment particles and mi... |
27 September 2007
07:15 GMT |
|
|
Columbus may have been proud to discover the New World in 1492, but we clearly know that he was not the first European to have stepped on American land. 500 years before, a group of blond Scandinavians had done it. It happened during the Viking era, when these sailors-warriors were roaming northern Africa, eastern Eu... |
9 August 2007
14:06 GMT |
|
|
Space telescopes observing the Sun have provided invaluable information on various aspects of our governing star, like its atmospheric composition and events, chemical and physical structure, evolution and ultimate fate, but they are facing a difficult problem.They literally go blind in time from looking at the Sun ... |
11 July 2007
09:41 GMT |
|
|
A new discovery in the field of nanotechnology could produce the smallest machines in history. The best part is that scientists will be able to remotely control them using rays of UV light, due to their shapeshifting properties.Physicists at the University of California at Berkeley presented the latest discovery in... |
5 July 2007
02:50 GMT |
|
|
Want sex? Put on the showiest clothing, drive the shiniest car, display the catchiest tattoos and maybe you'll get some. Or at least you have tried. But that's, in fact, an ancestral animal trait; that we still have to do it. Just look at the bright colors in feathers, scales, faces, or insect wings. But i... |
28 April 2007
06:25 GMT |
|
|
Eagle Nebula, also known as the Pillars of Creation, a young open cluster of stars, is like a stellar womb where astronomers have spotted a stellar embryo that could grow into a twin of our Sun. This baby star would be the earliest stage in a star's development ever detected. Hidden in a nodule of the left pill... |
6 March 2007
04:10 GMT |
|
|
|
|
Find us on Google+
