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ScienceDaily: Space & Time News |
| Deep neural network to find hidden turbulent motion on the sun Posted: 25 Feb 2022 07:02 AM PST Scientists developed a neural network deep learning technique to extract hidden turbulent motion information from observations of the Sun. Tests on three different sets of simulation data showed that it is possible to infer the horizontal motion from data for the temperature and vertical motion. This technique will benefit solar astronomy and other fields such as plasma physics, fusion science, and fluid dynamics. |
| Death spiral: A black hole spins on its side Posted: 25 Feb 2022 07:02 AM PST Researchers found that the axis of rotation of a black hole in a binary system is tilted more than 40 degrees relative to the axis of stellar orbit. The finding challenges current theoretical models of black hole formation. |
| New simulations refine axion mass, refocusing dark matter search Posted: 25 Feb 2022 05:58 AM PST Axions are today's most popular candidate for dark matter, and numerous experiments are trying to detect them in microwave cavities where the axion should rarely convert into an electromagnetic wave. But a new simulation of the production of axions in the early universe provides a more refined mass estimate, and higher frequency for the EM wave, that is outside the range of these experiments. The new mass comes from adaptive mesh refinement in supercomputer simulations. |
| NASA's Roman Mission could snap first image of a Jupiter-like world Posted: 24 Feb 2022 03:03 PM PST NASA's Nancy Grace Roman Space Telescope, now under construction, will test new technologies for space-based planet hunting. The mission aims to photograph worlds and dusty disks around nearby stars with detail up to a thousand times better than possible with other observatories. |
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