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Stories about: black holes |
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In an article I wrote yesterday about the supermassive black hole at the core of the Milky Way, I presented a theory suggesting that the X-ray flares produced by Sagittarius A* are caused by asteroids falling through the event horizon. Here are more details of that study. Now, the image in this post is a rendition t... |
10 February 2012
09:46 GMT |
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According to the results of new observations conducted with the NASA Chandra X-ray Observatory, it would appear that the supermassive black hole at the core of the Milky Way – called Sagittarius A* – is growing by nibbling on asteroids that stray too close to its surface.
The data indicate that the spa... |
9 February 2012
03:08 GMT |
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According to the conclusions of a new scientific study conducted by an international collaboration of astronomers, it would appear that the emergence of the first supermassive black holes was responsible for curbing intense stellar formation processes in the very first galaxies ever to develop.
The enormous behemot... |
27 January 2012
05:43 GMT |
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Officials at the American space agency say that NASA's new X-ray space observatory, the Nuclear Spectroscopic Telescope Array (NuSTAR), was shipped to the California-based Vandenberg Air Force Base (VAFB) on Tuesday, ahead of its upcoming launch.
The vehicle was shipped out on Tuesday, January 24, and will rea... |
26 January 2012
16:31 GMT |
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Black holes are extremely fascinating structures, and they've captured the imagination of astronomers for a wider variety of reasons. This is why a new meeting is taking place this week, where experts want to establish what is required in order for us to become able to photograph black holes directly.
In effect... |
19 January 2012
02:43 GMT |
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A massive outburst caused by a black hole inside our own galaxy was recently reconstructed by experts with an international team. They say that the ultradense object released two massive gas clouds following a cataclysmic event that occurred in the binary system H1743–322.
The NASA HEAO-1 spacecraft was the fi... |
11 January 2012
07:50 GMT |
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A while back, we reported on the chance that cosmic fireworks may soon drench the core of the Milky Way. A gas cloud was observed heading for the supermassive black hole in the center of the galaxy, and its collision with the dark behemoth was bound to cause a firework show of sorts. Now, astronomers determined the o... |
27 December 2011
16:01 GMT |
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A black hole astronomers became aware of only in 2003 may be the smallest such object ever discovered. According to researchers using the NASA Rossi X-ray Timing Explorer (RXTE), the structure may tip the scales at just three times the mass of the Sun.
While this may seem like a lot at first, it's actually very... |
16 December 2011
03:37 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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A group of astronomers at the University of California in Berkeley (UCB), led by experts Chung-Pei Ma and Nicholas McConnell, announces the discovery of the largest black holes ever found. Each of the two objects is located at the heart of a massive elliptical galaxy.
The dark behemoths are so immense that they are... |
6 December 2011
04:38 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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In a paper published in last month's issue of the esteemed Astrophysical Journal Letters, experts propose that black holes can suffer from what they plastically refer to as indigestion. The phenomenon only occurs during prolonged sessions on accreting matter non-stop.
Astrophysicists say that black holes that a... |
17 November 2011
08:23 GMT |
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According to investigators, it could be that our galaxy is filled with black holes that wander about, consuming whatever comes in their path. Such objects may also be consuming extrasolar planets, of which billions may exist throughout the spans of the Milky Way.
One of the most important things to keep in mind abo... |
15 November 2011
05:15 GMT |
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According to the conclusions of a new study conducted by an international team of astronomers, it would appear that some of the weird, donut-shaped dust clouds observed around supermassive black holes may contain debris left behind by high-speed collisions between extrasolar planets and asteroids.
The violent cosmic... |
1 November 2011
07:08 GMT |
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Investigators at the University of Kashiwa, in Japan, led by expert Dr. John Silverman, argue that supermassive black holes are more likely to develop at the core of merging galaxies than anywhere else. These conclusions are based on statistical analysis of images showing galactic collisions.
Galaxies that currentl... |
28 October 2011
18:01 GMT |
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Shortly after the Big Bang, the Universe entered a period astronomers refer to as the dark ages. During this time, the host of phenomena and processes that unfolded to set the Cosmos on its current evolutionary path remain hidden from astronomers, and experts are dying to know what happened.
Investigators say that ... |
25 October 2011
16:01 GMT |
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Astronomers have been proposing for many years that all galaxies have a black hole at their cores. This was proven to be true time and time again, even in our own Milky Way. But a recent study has revealed that the famous galaxy M85 does not have such a companion, and scientists are now wondering why.What is so inter... |
17 October 2011
10:12 GMT |
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This distant spiral galaxy, called NGC 300, has recently been shown to contain an impressive binary system at its core. Unlike other such systems, this one is made up of a relatively large star, which orbits around a black hole.
Such setups are very rare, because they are very difficult to form. The presence of a ... |
7 October 2011
07:01 GMT |
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Several spacecraft belonging to the European Space Agency (ESA) were recently involved in an international effort to scrutinize the outskirts of a black hole as close to the event horizon as possible. The vessels discovered that the dark behemoth shoots out bullet-shaped clouds of hydrogen gas.
With all of its gr... |
29 September 2011
10:07 GMT |
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Astrophysicists say that collisions between neutron stars can generate shock waves so powerful that they send radio signals throughout their surroundings. These emissions could theoretically be used to verify if the gravity waves Albert Einstein's theory imply to exist are real or not.
Thus far, the cosmic d... |
29 September 2011
06:19 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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In a large batch of data provided by the NASA Wide-field Infrared Survey Explorer (WISE) spacecraft, a team of astronomers recently discovered amazing new data on the flaring black hole GX 339-4. The findings could lead to a better understanding of the blazing jets these powerful objects produce.
The flaring blac... |
21 September 2011
03:43 GMT |
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For quite some time now, investigators have been hard at work in determining how the growth of supermassive black holes determines the growth of their host galaxies, and vice-versa. Recently, a new study indicated that even small, unremarkable galaxies can harbor the dark behemoths.
Until now, experts believed th... |
16 September 2011
04:49 GMT |
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According to the discoveries made in a new scientific study, it would appear that the jets produced by black holes are in fact formed much closer to the objects' surface than astronomers first realized. The new data might help researchers gain a better understanding of the phenomenon.
Jets are formed when ma... |
8 September 2011
03:00 GMT |
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Ever since astrophysicists started analyzing black holes in more details, a number of questions popped up in their heads. Chief among them was a puzzling mystery, the inability to explain why the masses of black holes and their parent galaxies were linked. A new study seeks to clarify the issue.
In fact, this ques... |
6 September 2011
16:01 GMT |
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According to mathematicians, discovering new dimensions other than the three we already know may be possible through in-depth studies of neutron stars and black holes. At the same time, this type of study would also reveal whether string theory stands to scientific scrutiny or not.String theory is a unifying theory, ... |
25 August 2011
10:42 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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Under very specific conditions, spherical and incompressible neutrons may take on cubic symmetry. According to a new study, this can only happen inside the extreme-pressure environment of neutron stars, whose cores are extremely dense. The latest calculations indicate that a tablespoon of matter from the core of such... |
22 August 2011
03:56 GMT |
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In a paper published in the August 12 issue of the esteemed journal Physical Review Letters, researchers at the University of York made a monumental discovery, when they found that black holes tend to gulp up all the matter in their surroundings, but leak information.The new data adds to the growing database of knowl... |
13 August 2011
06:52 GMT |
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According to investigators at the University of California in Berkeley (UCB), it would appear that studying the 2d carbon compound graphene might help us get a better understanding of what went on during the Big Bang. This was the event that “exploded” the Universe into being. At the same time, the materi... |
13 August 2011
06:40 GMT |
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For several years, physicists have been trying to harness the power of quantum physics to produce a quantum computer. This device would far exceed the capabilities of normal computers, but building it is proven to be very hard. Researchers now propose using black holes as quantum computers.According to Seth Lloyd, wh... |
8 August 2011
05:42 GMT |
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Researchers at the Kavli Institute for Particle Astrophysics and Cosmology say that they are currently testing an observations method that, if successful, could allow astronomers to observe individual black holes inside black hole binary systems. At this point, even detecting such a construct is extremely difficult, ... |
5 August 2011
10:45 GMT |
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For the first time ever, the NASA Chandra X-ray Observatory was able to observe the motion of hot gas towards a black hole. The object was discovered about 32 million light-years away from Earth, and the heart of the large galaxy NGC 3115.The most recent observations could play an important role in determining how ma... |
28 July 2011
06:01 GMT |
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Experts announce the discovery of 140 trillion times more water than our entire planet holds, in an enormous cloud surrounding a quasi-stellar radio source (quasar). Astronomers say that this is the largest and oldest water cloud ever discovered in the Universe.
According to early estimates, the cloud is about 12 ... |
23 July 2011
02:12 GMT |
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Astronomers at the Brigham Young University (BYU) determined in a new study that black holes at the core of massive galaxies are able to move laterally through their hosts too. Until now, experts believed that the dark behemoths were simply spinning at galactic centers, traveling alongside their hosts. Interestingly... |
21 July 2011
05:15 GMT |
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Using the most complex telescope in space, experts were recently able to identify a massive ring of dense gas at the core of the Milky Way. The structure stretches for more than 600 light-years, and was never before seen in its entirety.Previous studies revealed some portions of the structures, but it took the resolv... |
20 July 2011
04:42 GMT |
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According to a mounting body of evidence, it would appear that our galaxy may have collided with a large black hole as little as 10 million years ago. The object was most likely located at the core of a smaller, dwarf galaxy as the event happened. This theory was extrapolated from a number of sources, studies conduct... |
19 July 2011
03:47 GMT |
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New investigations are proving that the evolution of galaxies is a complex and continuous process, and one that does not conclude once a galaxy reaches a certain mass or size. The phenomenon continues over billions of years, but the way in which the cosmic structures grow differ. Early on, when a galaxy is just formi... |
18 July 2011
06:00 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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Experts managing the Monitor of All-sky X-ray Image (MAXI) instrument, an exposed facility (EF) experiment aboard the International Space Station (ISS), have just released a detailed view of the Universe showing the location of bright X-ray sources and binary black hole systems. From its orbital perch, attached to th... |
14 July 2011
10:58 GMT |
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Our understanding of how black holes work from a physics perspective holds that these objects should be capable of accelerating particles at much higher energies than equipment built here on Earth ever could. Now, investigators are looking into methods of making this a reality. The international collaboration of rese... |
14 July 2011
05:10 GMT |
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Physicists have recently taken a great deal of interest in tiny-mass black holes, constructs that are many orders of magnitude smaller than their supermassive counterparts inhabiting the cores of large galaxies.
Studies focused on microscopic black holes hope to tease out more data about how the structures form a... |
9 July 2011
05:24 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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While analyzing the skies in the direction of the constellation Draco, the Swift Gamma Burst Mission spacecraft discovered a massive gamma-ray flash taking place on March 28. Experts now say that the event was most likely caused by a massive star falling into a black hole. Since the emission was first detected, astro... |
17 June 2011
03:46 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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A new scientific investigation has revealed the presence of yet another enormous black hole, at the core of a galaxy where experts had already discovered a supermassive black hole during previous studies. The two cosmic giants apparently share the same home, experts say, inside the galaxy Markarian 739. The cosmic st... |
11 June 2011
02:29 GMT |
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A collaboration of astronomers announced the discovery of two protostars, located extremely close the the supermassive black hole at the core of the Milky Way. The objects were found just outside the dark behemoth's sphere of influence.The thing that perplexes astronomers about this finding is that the objects s... |
6 June 2011
05:59 GMT |
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Hundreds of black holes, weighing it at several thousand solar masses each, could be roaming the Milky Way, say investigators who recently conducted a new scientific study on the issue. These object are massive enough to devour entire planets whole. Seeing black holes directly is impossible, but experts know enough a... |
2 June 2011
04:10 GMT |
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German researchers from the Albert Einstein Institute (AEI) say that the likelihood of detecting proposed universal patterns called gravitational waves from Earth could increase significantly if just a single new detector is installed on Earth.
Thus far, these structures were not identified, but detectors are bein... |
28 May 2011
04:16 GMT |
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