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Most physicists believe that space is not smooth, but it is rather composed of incredibly small subunits, much like a painting made of dots. This micro-landscape is believed to host numerous black holes – black holes, that is, smaller than a trillionth of a trillionth of the diameter of a hydrogen atom, popping in and […]
As far as black holes go, Sagittarius A*, the supermassive black hole at the center of the Milky Way is pretty boring. It emits about the same energy as the sun, despite being 4 million times more massive. Sagittarius A* Astronomers have observed that about once a day, the black hole awakes, emitting a brief […]
I gotta say, sometimes it absolutely baffles me to see the kind of complex studies astrophysicists do, and this is definitely one of them. The light from the first stars in the Universe is still lingering around in the cosmos, and researchers have found a new way to capture it: using ultra-bright galaxies that act […]
Though this might sound like an oxymoron, this is possible the best term to describe one of the most interesting recent astronomical finds – the lowest mass supermassive black hole discovered so far. The black hole was detected at the center of a late-spiral galaxy, which astronomers at the Chandra X-Ray Observatory initially believed it […]
Astronomers at UCLA university have made a remarkable discovery, after they’ve confirmed the presence of a star orbiting the black hole at the center of our galaxy in a mere 11-and-a-half years – that’s the shortest known orbit of any star near this black hole. The researchers involved in the paper describing the find claim that […]
Einstein’s theory, as well as other theories about the fundamental space-time fabric around a black hole may be strongly tested, after astronomers report the finding of a a star that orbits an enormous black hole at the center of the Milky Way galaxy. Scientists explain it takes the star 11 and a half years to […]
Black holes are simply the worst neighbors to have around, as they wreck havoc in their vicinity. Scientific belief states, however, that in a globular cluster, which is a massive spherical conglomeration of thousands of thousands of stars, you can’t have more than one black hole, if any. New findings however show that there’s no safe neighborhood, […]
At the center of most galaxies lie black holes, some of which are classed as supermassive black holes. These cosmic bodies can have a mass billions of times greater than that of the sun, crammed in just a fraction of the latter. Gravity goes completely haywire in such an environment where this humongous mass gets crushed […]
Stars suffer, too, you know. Astronomers have recently discovered a distinctive X-ray signal coming from a star on the verge of being engulfed by a black hole in a distant galaxy. “This tell-tale signal, called a quasi-periodic oscillation or QPO, is a characteristic feature of the accretion disks that often surround the most compact objects […]
Quasars are some of the brightest objects in the Universe. Their formed after black holes devour captured material, like gas dust and stars that come too close, and release bright light that can be seen across the universe. Most of the popular astronomy today is orientated towards the particularly extremely bright quasars; those formed in a singular […]
In a distant galaxy, 2.7 billion light years away, a supermassive black hole, thousands of times more massive than our own sun, despicably swallowed a star, slowly engulfing it with no trace to be found afterwards; and the black hole would’ve gotten away with it, if it weren’t for that meddling NASA and those pesky Galaxy Evolution Explorer […]
Astronomers at NASA‘s Chandra X-ray Observatory have come across a true astronomical oddity at the outskirts of the Milky Way, a stellar-mass black hole which exerts the fastest winds ever observed so far in its class – so fast that it rivals those blown by supermassive black holes, which often are billion times more massive. […]
Some black holes are just meant to survive, regardless of what they go through. This is probably the case with the HLX-1 black hole, 20.000 times more massive than the Sun, which is practically floating on the outskirts of a galaxy. The problem with this supermassive black hole is that judging by its size, should […]
Whenever a massive object, with an equally massive gravitational pull, like black holes or galaxy clusters, falls between an observer, say a telescope, and a distant target in the background to be observed, than a gravitational lens is formed. Light emitted from the distant object gets twisted by the massive object, and ends up distorted […]
Black Holes are the least understood entities, so far, in the Universe. However, if there’s one thing scientists know for sure about them, it’s that they’re the most extreme environment in cosmos. Black Holes have such a powerful, relentless gravity pull that it swallows absolutely everything in its vicinity, even light gets absorbed with zero […]
Researchers working at the Rossi X-ray Timing Explorer have probably discovered what can be described as the heart beat of the smallest known black hole. This comes in less then a month after astrophysicists discovered the biggest known black hole in the Universe. An international team worked on this research, which relied on detecting X-rays […]
Black holes are perhaps the most fascinating and staggering objects in the known Universe, and we are just now beginning to uncover their secrets. Dr. Sergei Nayakshin of the University of Leicester and his team found that doughnut-shaped dust shrouds that cover about half of supermassive black holes may very well be the result of […]
For the first time in human history we have witnessed a black hole in the act of ‘eating’ a star that just got too close. So far, astronomers have only found the aftermath of such events, and they say that seeing the black hole in the act is shedding a lot of light on ‘relativistic […]
Astronomers have discovered the largest body of water so far known, a reservoir of water floating in space around a ancient distant quasar, holding 140 trillion times the mass of water in the Earth’s oceans. Remarkably enough, the find was dated as being 12 billion light years away, only 1.6 billion light years farther from […]
An intriguing hypothesis was brought up by Professor Bernard Carr from Queen Mary University in London and Professor Alan Coley from Canada’s Dalhousie University, who claims that some of the black holes we see today may actually be remnants of a past universe that collapsed into itself after a Big Crunch. I don’t know about […]
It’s still unclear if it was all about a stellar meal or if it was simply gas, or some other relatively unimportant phenomena that awoken the sleeping giant, but for the first time, astronomers have observed the awakening of a sleeping supermassive black hole. The sleeping giant It appeared to be a day just like […]
On the 28th of March the Swift telescope observed a peculiar gamma-ray blast in a distant corner of the visible universe, some 3.8 billion light years away, bewildered astronomers around the world. The powerful blast is theoretically caused, scientists say, by a black hole located in the center of the distant galaxy whose gravity tore […]
The discovery of a new black hole is always an interesting event; this time, researchers from the Instituto de Astrofísica de Canarias (IAC) have managed to get the first spectroscopic data from the binary system in case, and found that it contains a black hole, which is quite rare, at least according to out […]
Researchers have confirmed the presence of a previously undiscovered structure located in the center of the Milky Way, a discovery likened with the discovery of a new continent on Earth, in terms of scale. Doug Finkbeiner, an astronomer at Harvard-Smithsonian Centre for Astrophysics (CfA) in Cambridge, Massachusetts, who discovered the structure using NASA’s Fermi Gamma-ray […]
We’ve all seen at least one movie in which our planet is destroyed, but most of them were quite repetitive and kind of uninteresting. Our planet deserves so much more! Black holes Well, it seems the more we understand things about black holes, the more we find out things we don’t know, and the more […]
Let’s start with the beginning, shall we ? A black hole is a region of space in which the gravitational field is so powerful that nothing, not even light, can escape its pull after having fallen past its event horizon. That means that electromagnetic radiation (e.g. visible light) is unable to break away from the […]
Recently, a team of researchers (with the help of the National Science Foundation’s (NSF) Very Long Baseline Array (VLBA) and a host of international telescope partners) have managed to get the clearest observation yet of the “core” of a black hole. A black hole is a region of space in which the gravitational field […]
The date of March 19, 2008 will be remembered as a very important day in astronomy and science; it’s the day mankind had its first chance of witnessing the birth of a black hole. It all started when the “Pi of the Sky” telescope detected the brightest ever optical outburst from a distant place, about […]
