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VFTS 243 is a binary system of a large hot blue star and a black hole orbiting each other, as seen in this animation. Credit: ESO/L. Calçada, CC BY There is always something new and exciting going on in the field of black hole research. Albert Einstein first published his book explaining the general theory of relativity—which postulates black holes—in 1922. One hundred years later, astronomers captured the true image of the black hole at the center of the Milky Way. In a recent paper, a team of astronomers describes another exciting new discovery: the first “dormant” black hole observed outside a galaxy. I am an astrophysicist who has studied black holes—the densest objects in the universe—for nearly two decades. An inactive black hole is a black hole that does not emit detectable light. Because of this, they are notoriously hard to find. This new discovery is exciting because it provides insight into the formation and evolution of

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 “studying the impact of

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 across

Tiny blobs of jelly spin perfect circles in the water – their movement produces a force that attracts their neighbors. When enough of them come together, this synchronized dance aligns them into a precise six-sided, regular, repeating pattern, much like the carbon atoms in graphene’s crystal structure. But these are not atoms or any kind of inanimate object governed solely by the forces of physics – they are living, self-propelled, embryonic starfish ( patiria miniata ). The spinning starfish embryos gather into living crystals. (Tan et al., Natural 2022) “We know we have crystals of many materials, but we have never really linked crystal formation to actually living components,” said MIT physicist Nikta Fakhri. Natural . “This is a truly extraordinary phenomenon that has never been reported before.” Fakhri, MIT physicist Tzer Han Tan and colleagues studied active matter — a system in which each individual component (such as a bird in a flock, or a cell in a drop of water) uses energ

Scientists have studied Earth for so long, but some questions remain unanswered. An international research team led by ETH Zurich and the National Center for Competence on Planetary Research proposes a new answer to the question- how the Earth was formed. The prevailing theory suggests that the Earth was formed from chondritic asteroids. These are relatively small and simple blocks of rock and metal that formed in the early solar system. However, the problem with this theory is that no mixture of these chondrites can explain the exact composition of Earth, which is much poorer in light, volatile elements such as hydrogen and helium than expected. Over the years, many theories have been proposed to explain this difference. For example, it was proposed that the objects that later became Earth collided and generated tremendous heat. Light components are evaporated; consequently, left the planet with her current makeup. The study’s lead author, Paolo Sossi, Professor of Experimental

Scientists have studied Earth for so long, but some questions remain unanswered. An international research team led by ETH Zurich and the National Center for Competence on Planetary Research proposes a new answer to the question- how the Earth was formed. The prevailing theory suggests that the Earth was formed from chondritic asteroids. These are relatively small and simple blocks of rock and metal that formed in the early solar system. However, the problem with this theory is that no mixture of these chondrites can explain the exact composition of Earth, which is much poorer in light, volatile elements such as hydrogen and helium than expected. Over the years, many theories have been proposed to explain this difference. For example, it was proposed that the objects that later became Earth collided and generated tremendous heat. Light components are evaporated; consequently, left the planet with her current makeup. The study’s lead author, Paolo Sossi, Professor of Experimental