Since 2015, the field of astrophysics has been transformed by the groundbreaking discovery of gravitational waves — ripples in spacetime produced by cataclysmic events such as the merger of black holes. But are we interpreting these cosmic signals as accurately as we could? A collaborative team from the University of Portsmouth, University of Southampton, and … Read more
An Ancient Signal, 10 Billion Years in the Making Astronomers have discovered a mini halo in the early universe—a vast, faint cloud of high-energy particles surrounding a distant galaxy cluster, some 10 billion light-years from Earth. This marks the most remote mini halo ever observed, twice as far as any previously known. The finding not … Read more
Introduction: A Cosmic Mystery Worth Considering Is Our Universe Inside a Black Hole? At first, this sounds like science fiction. But surprisingly, it’s a real hypothesis debated by physicists. The concept comes from merging general relativity with observations about the mass, size, and behavior of our universe. It’s strange. It’s hard to wrap your mind … Read more
Introduction: The Curious Case of Light Bending in Space In the vast canvas of space, where stars and galaxies dance in silence, nature occasionally paints something truly spectacular—Einstein Ring. It’s not a structure or a solid object, but rather a cosmic illusion created by gravity’s unseen hand. A perfect circle of light, shining around a … Read more
Introduction: The Mystery of Quasi-Periodic Eruptions Black holes have long captivated scientists and space enthusiasts alike. But now, thanks to NASA’s NICER mission and its collaborators, we’re closer than ever to understanding a rare and mysterious phenomenon: quasi-periodic eruptions (QPEs). These powerful, rhythmic X-ray outbursts near supermassive black holes may unlock insights into how matter … Read more
In April 2025, NASA celebrates a truly remarkable milestone — the Hubble Space Telescope’s 35th anniversary in orbit. For more than three decades, Hubble has served as humanity’s eye on the universe, delivering breathtaking images, groundbreaking discoveries, and reshaping our cosmic understanding. From capturing stellar nurseries to probing the mysteries of dark energy, Hubble’s legacy … Read more