A new study published in Science challenges the myth of simple Barbarian domination in the Early Middle Ages. Researchers found that communities in northwestern Hungary formed part of a dense network, with populations showing southern European genetic ancestry and Asian/African diversity.
Researchers developed a comprehensive model of luminous black hole accretion, including radiation flows and interactions with surrounding gas. Their simulations reproduce consistent behaviors across various black hole systems, providing insight into extreme nonlinear processes.
A team of astrophysicists has developed a novel method to search for black hole light echoes, which can provide direct evidence of photons circling black holes due to gravitational lensing. The technique allows for the measurement of black hole mass and spin, revolutionizing our understanding of black hole physics.
A multidisciplinary research team has reconstructed the social dynamics of Avar-period steppe descent populations in Europe's Carpathian Basin. The study found that communities practiced a strict patrilineal system, with women playing a key role in promoting social cohesion through marriages outside their original community.
Researchers propose a new theory explaining how some white dwarfs remain hot for billions of years, contradicting the standard picture of cooling. The theory suggests buoyant crystals form in the star's interior, disrupting its cooling process and releasing gravitational energy.
A machine learning technique called PRIMO has been used to reconstruct a sharper image of the M87 black hole using Event Horizon Telescope (EHT) data. The new image reveals more detailed information about the bright accreting gas and a larger, darker central region.
Scholars developed an AI program using symbolic regression to improve mass inferences of galaxy clusters. The new equations extract jelly at the center and concentrate on doughy outskirts for reliable mass inferences.
A series of simulations have enabled researchers to probe the heterogeneous structure of the universe by treating galaxy distribution as a collection of points. The study reveals that on large scales, the universe approaches hyperuniformity, while on smaller scales it becomes almost antihyperuniform and strongly inhomogeneous.
A team of scientists used the flickering light of gas around a black hole to construct an accurate model of our galaxy's central black hole. They found that gas is directly infalling from large distances, rather than being siphoned off over time.
For the first time, astronomers have captured an image of the supermassive black hole at the center of our galaxy, revealing a dark central region surrounded by a bright ring-like structure. The observation provides valuable clues about the workings of such giants and confirms that the object is indeed a black hole.
A team of researchers led by Zili Shen and Pieter van Dokkum used Hubble Space Telescope to measure the distance of ultra-diffuse galaxy NGC1052-DF2, confirming it lacks dark matter. The results are based on 40 orbits of the telescope and provide crucial implications for estimating the physical properties of the galaxy.
Researchers measured pulsar accelerations to clock star motions, revealing tiny accelerations at a few centimeters per second. This opens a new window into galactic dynamics and provides clues in the search for dark matter.
Researchers from the Event Horizon Telescope collaboration used the first horizon-scale image of a black hole to test general relativity, deepening understanding of black holes and ruling out many alternatives. The study found that the size of the black hole shadow corroborates the predictions of general relativity.
Researchers propose a kinetic misalignment scenario that strengthens the axion/dark matter equivalence. This novel concept answers key questions and provides new avenues for detection efforts.
A new study reveals how 'continuous reaction networks' can produce RNA precursors and possibly ultimately RNA itself, a critical bridge to life. The experiments exposed simple molecules to high-energy radiation and evaporation, returning compounds that may have been important for the origins of life.
Researchers predict a nested series of rings within black hole images, with each successive ring becoming increasingly sharper due to its higher number of orbits around the black hole. This discovery enables new possibilities for observing black holes using only two telescopes far apart.
Researchers at IAS and University of Michigan propose QCD axion as solution to cosmological excess of matter over antimatter. The QCD axion could explain three missing pieces of physics puzzle, including the strong CP problem and dark matter.
The Institute for Advanced Study has been awarded a $1 million grant from Schmidt Futures to leverage advances in high-performance computing and deepen our understanding of cosmic phenomena, including neutron star mergers, star formation, and galaxy dynamics. The project aims to develop new numerical methods and tools to address challe...
Researchers propose a new perspective on cancer origins, highlighting the importance of mutation sequence and cell type in tumor growth and response to therapy. This approach may lead to new avenues for cancer prevention and treatment.
Researchers sequenced ancient genomes from two 6th-century cemeteries in Hungary and Italy, shedding light on the lives of Longobard communities. The study found a strong relationship between genetic background and material culture, suggesting that these communities were aware of their differences and it influenced their social identity.