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Home > News > Tags > astrophysics
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Stories about: astrophysics |
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According to the results of a new, complex series of calculations, the best time to study the Universe has long since passed. The ideal moment for such research, when we could have obtained the largest amount of useful data, was around 500 million years after the Big Bang.
Though we are more than 13 billion years l... |
23 May 2012
05:00 GMT |
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When I first saw this video, I thought I had a very good grasp on the scale of things in the Universe. But the scale of planets, galaxies, clusters and superclusters, as presented in this video, is simply too much to grasp. If you can understand it, then treat yourself to a mint.
We hear astronomers babbling about ... |
19 January 2012
11:03 GMT |
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Astrophysicists have been trying to figure out how the magnetic fields around pulsars form and behave, but their efforts did not manage to produce a widely-accepted answer. A new study proposes an additional explanation for this process, revealing it in detail.
Pulsars represent a particular class of neutron stars,... |
23 November 2011
03:47 GMT |
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More than 30 years ago, based on data available at the time, famed physicist Stephen Hawking proposed that the galaxy Cygnus X-1 had a black hole at its core. Since then, astrophysicists thought they had proved him wrong, but a new study finally demonstrates the contrary. Not only that, but the team that conducted t... |
19 November 2011
03:43 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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Astrophysicists believe that extrasolar planets located in regions dense in dark matter could represent the last bastion life can occupy as the Universe grows old. Scientists say that these objects remain warm even if they are not accompanied by a parent star. Dark matter alone is enough to heat them. Therefore, tril... |
24 October 2011
05:49 GMT |
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Astrophysicists at the Harvard-Smithsonian Center for Astrophysics (CfA) say that their latest study on the nature of dark matter within the Milky Way has left them knowing less about the elusive stuff than they did before starting the investigation. Dark matter was first proposed to exist in order to explain why gal... |
18 October 2011
06:13 GMT |
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Scientists with the Institute of Astronomy in Cambridge announce the discovery of very old stars inside the earliest galaxies known to have formed in the Universe. The discovery seems to hint that the galaxies themselves are in reality a lot older than first estimated.
Team leader Dan Stark says that some of the ... |
26 September 2011
14:21 GMT |
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There is no denying the fact that Albert Einstein's theory of general relativity is a tremendous achievement. But while verifying it is easy, answering the riddles it poses is not. Now, a research team is proposing using the Sun to clear the remaining mysteries related to gravity once and for all. '
What... |
5 September 2011
18:01 GMT |
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Radio wavelength emissions recorded from filaments located within our galaxy may in fact represent a definitive proof that dark matter indeed exists. Astronomers discovered these central galactic filaments some years ago, but had no way of explaining them until now. In the new study, experts are proposing that the em... |
1 July 2011
09:27 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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An Australian science student managed to provide additional evidence that expert Fritz Zwicky was right in its theory on where the missing mass of the Universe may be hiding. The work done by Amelia Fraser-McKelvie, 22, has already been published in a scientific journal.
The Monash University aerospace engineering/s... |
25 May 2011
02:39 GMT |
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Scientists in the United States recently provided the first confirmation that an European collaboration of physicists actually saw particles thought to make up dark matter in a long-term experiment.
The American team, based in an abandoned iron mine in Minnesota, operates a germanium-based detector, which seeks to... |
4 May 2011
02:05 GMT |
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Analysis of the basic properties of black holes appears to indicate that some of these dark behemoths may be capable of surviving the destruction of the Universe. If the Cosmos operates in cycles of Big Bangs and Big Crunches, then black holes can theoretically endure the latter events. In a new study, experts look a... |
3 May 2011
08:02 GMT |
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A team of astronomers believes it may have established the location of massive dark matter clouds inside Abell 1689, an extremely large galaxy cluster. The formation has a gravitational pull whose strength cannot be accounted for by the existing, visible matter. Therefore, investigators say that large clouds of dark ... |
29 April 2011
05:11 GMT |
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In a recent series of studies, astrophysicists decided to test the theory of “hidden matter” yet again, this time against a more well-known cosmic structure. They looked at the Coma cluster of galaxies, and determined that there simply isn't enough mass in it to account for its gravitational pull.
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3 February 2011
02:43 GMT |
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Astrophysicists at the University of Arizona in Tucson (UAT) propose that black holes are surrounded by a ring of light, that is made up of photons which are unable to escape the massive gravitational pull of the object, but which have not yet passed through the event horizon. As such, these elementary particles are ... |
31 January 2011
18:01 GMT |
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Most famously, the Cepheus constellation is home to the Bubble Nebula, and this is a widely known fact. However, it also contains a second nebula too, which lies right next to its more famous sibling. The emission and reflection nebula, called NGC 7538, was the object of a new study done recently.What makes this part... |
3 December 2010
04:16 GMT |
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Astronomers searching for our galaxy's hypothesized dark matter disk say that they have thus far come up empty-handed in their quest. The features should exist at the locations analyzed if dark matter theories are correct. Though no clear studies have demonstrated the existence of dark matter directly, astronome... |
9 November 2010
02:36 GMT |
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New studies seem to suggest that the earliest stars which appeared soon after the Universe was created were not made out of regular matter, but rather from the strange substance known as dark matter. The concept of dark matter was introduced in astrophysics by experts trying to explain how is it that galaxies stick t... |
11 October 2010
08:30 GMT |
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Astrophysicists show in a new study that two of the “darkest” things in the Universe may in fact be combining to produce highly-energetic radiation. The finding may open the way for developing new techniques aimed at observing dark matter. The team behind the investigation says that supermassive black hol... |
28 August 2010
05:47 GMT |
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A team of physicists proposes that the measure known as the fine structure constant is not constant after all, basing their statement on a recent series of scientific studies. The new data appear to indicate that the constant is in fact influenced by the orientation of space, a phenomenon that produces small spatial ... |
26 August 2010
06:51 GMT |
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Astrophysicists now believe that they could keep track of galactic mergers by scanning the Universe for signs of highly-energetic and very powerful jet radiation, which would result from black hole collisions. This may help astronomers get a better clue of the frequency with which galactic mergers took place, and als... |
20 August 2010
01:18 GMT |
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The international astronomical community is today holding its breath pending the release of a tremendously-important report on the future directions of development for space exploration.Produced by the National Research Council (NRC), the new document will mention the top priorities that space sciences will have all ... |
13 August 2010
09:25 GMT |
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One of the greatest mysteries in the fields of astronomy and astrophysics was until recently figuring out how supermassive black holes get so big. These impressively-large formations can be found at the cores of equally-massive galaxies, and they can grow continuously until their reach masses a billion times larger t... |
26 April 2010
11:31 GMT |
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When peering at the night sky through any telescope, the stars appear to be still. In fact, they've maintained the same relative position towards Earth since mankind started taking an interest in them. But astronomers have recently detected that a number of clusters of galaxies travel through the Universe along ... |
11 March 2010
03:55 GMT |
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One of the most important goals in astronomy has always been discovering the exact age of the Universe, its dimensions, as well as its origins. People have been fascinated with these questions since the days when Og first looked at the skies. Measurements of these traits can now be conducted with scientific rigor via... |
2 March 2010
05:02 GMT |
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No more than three years ago, experts using a large telescope array in Argentina published a paper proposing a possible source for the peculiar space phenomena that are cosmic-rays. This type of radiation is composed of highly-energetic particles, whose origins are a complete mystery. The investigators said in 2007 t... |
23 February 2010
03:12 GMT |
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Scientists at the Bonn University, in Germany, announce that preliminary results from their telescopes studies aimed at massive stars reveal that magnetic fields play a much more important in regulating these fireballs' growth than previously thought. The investigation was conducted using the Jodrell Bank Observ... |
19 February 2010
01:31 GMT |
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Astronomers and astrophysicists were finally able to find the answer to a question that has been around for quite some time, namely why older galaxies appear to have been producing more stars than their modern counterparts. According to experts at the Harvard Smithsonian Center for Astrophysics (CfA), this is largely... |
11 February 2010
06:28 GMT |
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Dark energy is a hypothesized force in the Universe that is believed to be largely responsible for the ever-accelerating speed at which the Cosmos expands. This was inferred from the fact that galaxies appeared to be moving away from each other, which is consistent with a scenario in which the entire cosmic bubble is... |
26 January 2010
10:51 GMT |
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Some of the massive stars in the Universe are destined for great things after they reach the end of their burning cycles. Rather that fizzling out and turning into a white dwarf, or collapsing into a massive black hole, they convert their core into a fast-spinning type of structure called a neutron star. These object... |
19 January 2010
09:54 GMT |
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An international group of astrophysicists has recently demonstrated another astonishing fact about our galaxy, the Milky Way. In their work, the experts proved that the magnetic fields at the core of the galaxy, near the central, supermassive black hole, were many times stronger than the ones found in the outer reach... |
7 January 2010
18:01 GMT |
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Experts have recently come to believe that some of the earliest stars in the Universe, which formed more than 13 billion years ago, may have been fueled by dark matter originally. This type of matter was hypothesized more than a decade ago, but thus far scientists have been unable to detect it directly. But some beli... |
21 December 2009
11:14 GMT |
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In a bid to gain a deeper understanding in the formation and operation of turbulent flows, physicists at the University of Warwick have made clever use of the Ulysses spacecraft, as well as of the fact that the Sun is still at its solar minimum. The result was the equivalent of a lab workbench more than 200 million m... |
12 December 2009
03:38 GMT |
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Gamma-ray bursts (GRB) are among the most peculiar phenomena in the Universe. Their sources are not very well known, although some evidence exists of possible origins. Since they were first discovered, some 50 years ago, they have sparked excitement in the scientific community, and have made astronomers believe that ... |
4 November 2009
21:51 GMT |
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An Italian team argued some time ago that it had discovered dark matter, in a statement that shocked the world of astrophysics. However, when other research groups wanted to replicate the experiments, they had a very difficult time doing so. It may be that they will have to reach the same conclusion as the Italians, ... |
4 November 2009
02:47 GMT |
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Over the next decade, as new-generation telescopes will be built around the world, scientists will need to keep an eye on all datasets that come out of these machines, interpret them, analyze them, and then draw conclusions based on them. But everyone agrees that this is a fantasy, something that will be impossible t... |
27 October 2009
07:20 GMT |
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Black holes, once highly misunderstood formations, have over the years captured the imagination of astronomers and film producers alike, and have been prominently featured in films and in literature. In spite of the high levels of attention they were given, there are still a great many things that remain unknown abou... |
22 August 2009
06:31 GMT |
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Brian May was the lead guitarist and backing (sometimes lead) vocalist for the English rock band Queen for almost forty years. In addition to being famous for writing the band's biggest hits, "We Will Rock You", "Fat Bottomed Girls", "Tie Your Mother Down", "Who Wants to Live Forever" and "I Want It All," he�... |
26 July 2007
04:17 GMT |
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