Supermassive black holes, celestial objects with masses greater than a million times that of the Sun, remain one of the greatest enigmas of the cosmos. These dark giants, located at the center of most galaxies, have an origin that has intrigued scientists for decades. Now, a team of researchers from the University of Nevada, Las […]
Astrophysics
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Astronomers Find Most of the Universe is Darkness, and Its Light Has Been Fading for 10 Billion Years
Scientists have taken a virtual trip to the far reaches of our solar system to measure the faint glow that fills the universe, called the cosmic optical background. This glow is the dim light left behind by stars and galaxies that have formed and burned out since the beginning of the cosmos. The study, published […]
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Two of the Hundreds of Known Black Holes in the Universe Emit a Pulse, and Scientists Now Know Why
An international team of astronomers has detected variability, a pulse, in the behavior of the black hole IGR J17091-3624. This phenomenon, nicknamed a heartbeat, has been observed using data from the NICER and NuSTAR space observatories and could offer new insights into the complex processes occurring near these enigmatic cosmic objects. The study, led by […]
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Measurement that the universe expands at 67.4 kilometers per second per megaparsec confirms the validity of the cosmological model
Scientists have been debating how fast our universe is expanding, a rate that is called the “Hubble constant”. For the past 20 years, two main methods of measuring this rate have given different results, leading some to wonder if our understanding of the universe was incomplete. However, new data from the James Webb Space Telescope […]
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Antimatter Detected on the International Space Station Reveals Unknown Physics
The Alpha Magnetic Spectrometer (AMS-02), a particle detector aboard the International Space Station, has identified particles of antimatter (antihelium) that are not easily produced in the known universe. This discovery challenges current theories about the production of antimatter and suggests that we might be observing completely new astrophysical phenomena. Antihelium is the antimatter form of […]
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Three Mysterious Bright Objects in the Early Universe Baffle Scientists
A recent discovery by NASA’s James Webb Space Telescope (JWST) has challenged conventional thinking about the origins and evolution of galaxies and their supermassive black holes. Using the NIRSpec instrument aboard JWST as part of the RUBIES survey, an international team led by researchers from Penn State identified three mysterious objects in the early universe, […]
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The Most Distant and Ancient Star Clusters Discovered Thanks to 5 Cosmic Gems Acting as Gravitational Lenses
An international collaboration, led by Ángela Adamo from Stockholm University and the Oscar Klein Centre in Sweden, has discovered five gravitationally bound star clusters in a galaxy whose light was emitted when the universe was only 460 million years old, thanks to observations from the James Webb Space Telescope (JWST – NASA/ESA/CSA). This discovery, published […]
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Researchers Show for the First Time Gravity Can Exist without Mass or Dark Matter
For nearly a century, dark matter has been one of the most enigmatic concepts in astrophysics. This hypothetical form of matter is inferred from gravitational effects that cannot be explained by general relativity alone, suggesting the existence of unseen mass in the universe. Proposed by Dutch astronomer Jan Oort in 1932 to explain the missing […]
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Astronomers Detect Carbon in One of the Oldest Galaxies, an Essential Element for Life
In a study utilizing the James Webb Space Telescope (JWST), an international team of astronomers, led by the University of Cambridge, has observed a very young galaxy in the early universe, revealing surprising amounts of carbon. This discovery challenges current understanding of the formation and evolution of galaxies and the elements within them. In astronomical […]
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NASA’s James Webb Space Telescope Finds the Oldest and Most Distant Galaxy Ever Discovered
NASA’s James Webb Space Telescope (JWST) has made an incredible discovery by identifying the oldest and most distant galaxy ever found. This exciting find helps scientists learn more about the early Universe. The galaxy was discovered by a group of researchers working on the JWST Advanced Deep Extragalactic Survey (JADES) project. They found it near […]
