Found: Most pristine star in the universe
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Updates every hour. Last Updated: 17-Apr-2026 15:16 ET (17-Apr-2026 19:16 GMT/UTC)
As humanity's exploration of the Earth's internal structure deepens, Earth's free oscillations, serving as crucial "fingerprints" for revealing the large-scale structure and dynamic processes within the Earth, have always been a core subject in geophysics. Ground-based station observations are currently the mainstream method for measuring Earth's free oscillations. With the advancement of space technology, high-precision inter-satellite distance measurement holds the potential to become a novel method for detecting these oscillations.
In a recent paper published in Space: Science & Technology, a research team from the School of Physics and Astronomy at Sun Yat-sen University, in collaboration with the TianQin Research Center for Gravitational Physics, proposed a novel detection and analysis method for Earth's free oscillations utilizing the "TianQin" space-borne gravitational wave detector. The study constructed a theoretical response model for Earth's free oscillations within the TianQin detector and derived their analytical waveform for high-orbit satellite laser interferometric measurements. Through numerical simulation and Bayesian parameter estimation, the research team demonstrated that for a major seismic event like the 2008 Wenchuan earthquake, TianQin could achieve a clear detection with a signal-to-noise ratio as high as 73 and independently distinguish at least nine different free oscillation modes.
New research in Geology uses images from the Curiosity rover to decode the planet’s atmosphere at a time when the surface was potentially habitable
Researchers from the Additive Manufacturing Laboratory at Tallinn University of Technology (TalTech), Prof. Dr.-Ing. Prashanth Konda Gokuldoss and Mayank Kumar Yadav, have developed a new type of metal implant designed to support bone healing. Their work has been published in the journal Advanced Light Materials. The researchers created a hybrid implant that combines a stronger titanium alloy framework with zinc, a metal that can slowly dissolve inside the body. This design allows the implant to provide mechanical support while gradually creating space for new bone growth. The study introduces a new manufacturing approach that combines 3D printing (additive manufacturing) with pressure assisted sintering (spark plasma sinteing) to produce this metallic implant. The development addresses a key challenge in orthopedic implants providing strong support while avoiding problems that occur when implants are much stiffer than natural bone, which can weaken the surrounding bone over time and sometimes lead to additional surgeries.
Observing the Taurus Molecular Cloud, a research team led by Kyushu University has found that during the early growth period of a baby star, the protostellar disk blows magnetic flux 1,000 au in size and creates a giant, relatively warm ring. Describing these phenomena as a baby star’s “sneezes,” these expulsions of energy and gas help the star to properly develop.
Scientists analysing data from the Cassini-Huygens mission have uncovered a significant structural surprise in Saturn’s protective magnetic bubble.
Researchers say this discovery confirms that giant planets operate under a different magnetospheric regime from the Earth’s.
The study in Nature Communications includes Dr Licia Ray and Dr Sarah Badman from Lancaster University with Dr Chris Arridge, formerly of Lancaster.
Reading Weather and Climate since 1831, by Dr Stephen Burt, combines vivid historical accounts and contemporary photography from the past 200 years.