![]() ![]() "We think this means the optical and UV emission arose far from the black hole, where elliptical streams of orbiting matter crashed into each other." "We discovered brightness changes in X-rays that occurred about a month after similar changes were observed in visible and UV light," study lead author Dheeraj Pasham, an astrophysicist at the Massachusetts Institute of Technology, said in a NASA statement. The star got too close to its galaxy's central black hole about 290 million years ago, and collisions among its torn-apart pieces caused an eruption of optical, ultraviolet and X-ray light that was first spotted by scientists in 2014.įresh observations of this radiation by NASA's Swift telescope have yielded more details about where these different wavelengths were generated in the event, which is called ASASSN-14li, a new study reports. The study was posted online July 29 in the preprint journal arXiv and was submitted to the Journal of High Energy Physics.A star's long-ago death dive into a black hole generated cosmic fireworks that are revealing more and more about the dramatic encounter. ![]() It will not be an infinite amount of information that you can send without destroying the wormhole.” "We are trying to find generalizations of our setup that would allow for more information, but that's a work in progress," Van Leuven told Live Science. Currently, such wormholes and connected black holes are entirely theoretical, but scientists think it's not wholly impossible that they could be created or manipulated by some kind of advanced civilization. Van Leuven and other scientists are continuing to study a wide range of setups and rules, both similar and dissimilar to those of our own universe, that might allow the transmission of more information. Additionally, each subsequent message would decrease in size, such that the message would eventually hold no information. With the first message, the receiving black hole would lose about 30% of its mass, and over subsequent messages, the black hole would disappear. The sending black hole would increase in mass, and the receiving black hole would decrease in mass, with each message sent. They also found that sending messages through the wormhole would change the black holes. The results showed that only a few bits of information could be passed through the wormhole at a time - less than other methods had found. The math used to describe the scenario was done in a two-dimensional universe for simplicity, but it should also hold true for a 3D universe, like our own. In the new research, Van Leuven and his colleagues studied the traversable wormhole using the geometry of space-time as described by Albert Einstein's theory of general relativity. (In quantum teleportation, information can be almost instantaneously sent across vast distances using particles that were quantum entangled, meaning their states are linked no matter the distance that separates them.) "We know now from that this process is analogous to quantum teleportation … but there are limits on how much info can be sent," said Aron Wall, a researcher in the Department of Applied Mathematics and Theoretical Physics at the University of Cambridge who was not involved in the new study. Scientists have known that, in theory, this specific universe setup allows information to pass via wormholes, and they previously made some estimates to determine just how much information could travel in this way. That means you can visualize space-time as an enormous saddle, where if two creatures tried to walk in parallel paths, they would actually be moving away from each other. For instance, the traversable wormhole would be possible only when space-time had a negative curvature. Doing this requires that both universes and the connected black hole have a certain kind of physics and geometry. ![]()
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