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    Dark matter, not a black hole, could power Milky Way’s heart

    February 7, 2026, Categories  Astronomy/Space

    'Dark matter, not a black hole, could power Milky Way's heart'
    Artistic representation of the Milky Way, where the innermost stars move at near relativistic speeds (defined as velocities that constitute a significant fraction of the speed of light, typically considered to be 10% or more) around a dense core of dark matter, with no black hole at the centre. At greater distances, the halo part of the same invisible dark matter distribution continues to shape the motions of stars in the outskirts of our galaxy, tracing the characteristic rotation curve. Credit: Valentina Crespi et al. License type Attribution (CC BY 4.0)

    Our Milky Way galaxy may not have a supermassive black hole at its center but rather an enormous clump of mysterious dark matter exerting the same gravitational influence, astronomers say...

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    Self-regulating living implant could end daily insulin injections

    February 5, 2026, Categories  Health/Medical, Biology/Biotechnology

    Self-regulating living implant could end daily insulin injections
    Crystal Capsules. Credit: Technion – Israel Institute of Technology

    A pioneering study marks a major step toward eliminating the need for daily insulin injections for people with diabetes. The study was led by Assistant Professor Shady Farah of the Faculty of Chemical Engineering at the Technion—Israel Institute of Technology, in co-correspondence with MIT, and in collaboration with Harvard University, Johns Hopkins University, and the University of Massachusetts. The findings are published in the journal Science Translational Medicine.

    The research introduces a living, cell-based implant that can function as an autonomous artificial pancreas, essentially a living drug that is long-term, thanks to a novel crystalline shield-protecting technology...

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    Unhackable metasurface holograms: Security technology can lock information with light color and distance

    February 5, 2026, Categories  Physics, Technology/Electronics

    Schematic of secure holography using a reconfigurable stacked metasurface based on a modular diffractive deep neural network. Each metasurface layer independently reconstructs distinct wavelength-encoded holograms (e.g., ID and QR). When two layers are aligned at a specific interlayer spacing, the system is trained to reveal an encrypted hologram (PW). Because decryption is enabled by the combined choice of wavelength and interlayer spacing as physical decoding keys, the information can be retrieved without electronic computation. This single platform integrates standalone (layer-wise), combinational (cipher), and multi-wavelength functionalities, enabling a photonic security platform for optical encryption and data storage. Credit: POSTECH

    A research team led by Professor Junsuk Rho a...

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    Scientists just mapped the hidden structure holding the universe together

    February 5, 2026, Categories  Astronomy/Space

    The Universe’s Hidden Structure Revealed
    This map shows the Dark Matter distribution in the COSMOS field observed by the Hubble Space Telescope (left) and by the James Webb Space Telescope (right). Dark Matter distribution in the COSMOS field. The overlaid contours mark regions of equal dark-matter density, highlighting where this invisible matter – shown here in a blue color ­– is most strongly concentrated. Credit: Dr. Gavin Leroy/Professor Richard Massey/COSMOS-Webb collaboration

    Scientists have produced the most detailed map ever created of dark matter that runs throughout the Universe, revealing how it has influenced the formation of stars, galaxies, and planets.

    The research, which includes astronomers from Durham University in the UK, provides new insight into how this unseen substance helped draw ordinary matt...

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