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The doughnut-shaped rings surrounding many supermassive black holes tell researchers how fast extraterrestrial objects are feeding and could change how black holes are viewed from Earth. Credits: ESA/NASA, AVO project and Paolo Padovani The researchers used X-ray telescopes and new data analysis techniques to describe extraterrestrial objects. Black holes with different light signatures that were once thought to be the same object viewed from different angles are actually in different stages of their life cycle, according to a study led by Dartmouth scientists. New research on black holes known as “active galactic nuclei,” or AGNs, says that it definitively demonstrates the need to revise the widely used “AGN unified model” that characterizes supermassive black holes because they all share the same properties. This study provides an answer to a troubling space mystery and should allow researchers to create more precise models of the evolution of the universe and...

The near side of Earth’s Moon, as seen using data from the camera aboard the Lunar robot. owned by NASA … [+] Reconnaissance Orbiter spacecraft. Credit: NASA/Goddard Space Flight Center/Arizona State University NASA’s Lunar Reconnaissance orbiter (LRO) has discovered a crater hole near the Moon’s Sea of ​​Tranquility at room temperature. An LRO onboard thermal imager found that a 328-foot depression about the length and width of a football field had overshadowed an area that maintained a constant, cool temperature of around 63 degrees Fahrenheit. The hope is that future astronauts will be able to use such a hole as a shelter from the extreme temperatures of the lunar surface that can fluctuate between 260 degrees Fahrenheit on lunar days and cold to minus 280 degrees Fahrenheit on lunar nights. First discovered on the Moon in 2009, such holes, subsurface lava tunnels, and caves can also offer protection from cosmic rays, solar radiation, and micrometeo...

A team of European astronomers led by Professor Kalliopi Dasyra of the National and Kapodistrian University of Athens, Greece, under the participation of Dr. Thomas Bisbas, University of Cologne modeled several emission lines in the Atacama Large Millimeter Array (ALMA) and the Very Large Telescope (VLT). ) observations to measure gas pressure in jet-affected clouds and surrounding clouds. With this unprecedented measurement, published recently in Natural Astronomy , they found that the bursts significantly changed the internal and external pressures of the molecular cloud in its path. Depending on which of the two pressures changes the most, both cloud compression and star formation triggers and cloud dissipation and star formation delays are possible in the same galaxy. “Our results suggest that supermassive black holes, even though they are located at the center of galaxies, can influence star formation across galaxies” said Professor Dasyra, adding that “study...

Credit: Public Domain CC0 A team of European astronomers led by Professor Kalliopi Dasyra of the National and Kapodistrian University of Athens, Greece, under the participation of Dr. Thomas Bisbas, University of Cologne modeled several emission lines in the Atacama Large Millimeter Array (ALMA) and the Very Large Telescope (VLT). ) observations to measure gas pressure in jet-affected clouds and surrounding clouds. With this unprecedented measurement, published recently in Natural Astronomy they found that the bursts significantly changed the internal and external pressures of the molecular cloud in its path. Depending on which of the two pressures changes the most, both cloud compression and star formation triggers and cloud dissipation and star formation delays are possible in the same galaxy. “Our results show that supermassive black holes, even though they are located at the center of galaxies, can influence star formation a...

Numerical simulation of a black hole-neutron star merger. Density profiles are shown in blue and green, magnetic field lines penetrating black holes are shown in pink. Unbound material is shown in white its velocity with a green arrow. Credit: K. Hayashi (Kyoto University) Using supercomputer calculations, scientists at the Max Planck Institute for Gravity Physics in Potsdam and from Japan showed a consistent picture for the first time: They modeled the complete process of a black hole colliding with a neutron star. In their study, they calculated the process from the final orbit through merging to the post-merger phase where, according to their calculations, high-energy gamma-ray bursts could occur. The results of their study have now been published in the journal D Physical Overview . Nearly seven years have passed since the first detection of gravitational waves. On September 14, 2015, LIGO detectors in the US recorded the signa...