Common crystal proves ideal for low-temperature light technology
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Updates every hour. Last Updated: 27-Oct-2025 19:11 ET (27-Oct-2025 23:11 GMT/UTC)
The SETI Institute announced today that the California Academy of Sciences has awarded its highest honor, the Fellows Medal, to Dr. Jill Tarter, SETI Institute co-founder and Bernard M. Oliver Chair Emerita for SETI at the SETI Institute, recognizing her pioneering contributions to the scientific search for life beyond Earth. Medalists are nominated by Academy Fellows and confirmed by the Board of Trustees.
“The Cal Academy Fellows Medal is a great honor that I am now fortunate to share with a group of extraordinary previous Medalists,” said Tarter. “Over the years it has been extremely rewarding for the SETI Institute to work with a number of Academy teams to improve public understanding and engagement in the enterprise of science for all.”
A novel study on the natural coordination of tooth development in time and space, led by Dr. Han-Sung Jung at the Yonsei University College of Dentistry, Korea, has discovered that “lingual” cells on the side of the tongue form the tooth, whereas those toward the cheek, called “buccal cells,” form the bones and gums, guided by signaling molecules like WNT and BMP. These insights could shape future modalities for tooth regeneration, replacement, and repair.
Dynamic manipulation of optical signals between on-chip and free-space optical fields are highly pursued in various applications. Towards this goal, scientists in China proposed an addressable on-chip metasurface network on lithium niobate platform to present dynamic waveguide-based holographic display with improved multiplexing capability. Such scalable platform will advance holographic displays, high-capacity optical communication, and integrated photonic information processing, leveraging the potential of thin-film lithium niobate technology with high integration, fast response and high scalability.
The ability to get detailed views of distant objects in space is limited by the telescope size, so the sharpest details are usually obtained by linking telescopes together. A UCLA-led team of astronomers has used a device called a photonic lantern on a single telescope to get the most detailed view yet of star beta Canis Minoris. The photonic lantern splits light collected by the telescope into multiple channels based on spatial “mode,” then computational techniques are used to reconstruct a high-resolution image from the photonic lantern outputs. The new approach to imaging will allow astronomers and astrophysicists to view objects that are smaller and more distant than ever before, unlocking answers to some mysteries.
Researchers discovered a previously unknown solar radio pattern — periodic beaded stripes — using the Chashan Broadband Solar Radio Spectrometer during a 2024 flare. These narrow, drifting radio bands, dotted with rhythmic “beads”, reveal rapid plasma processes in the Sun’s corona. The team attributes their formation to the double plasma resonance effect, modulated by magnetohydrodynamic waves. Observations suggest a weak magnetic field (~1 G) above the flaring loops in an active solar region.