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BWC: Man standing on side of overpass runs at Texas officer with sharp object before OIS

The man was clinging to a barrier on the side of a highway overpass when a Fort Worth PD officer asked him to climb back onto the road; he then ran at the officer with a sharp object

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BWC: Man barricaded in hospital parking garage points gun at Dallas SWAT officers before fatal OIS

After more than an hour of negotiation, SWAT officers used tear gas to force the man of his vehicle; he then pointed a gun at officers

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Astronomers discover long-period radio transient of unknown origin

Using the Australian SKA Pathfinder (ASKAP), astronomers have discovered a new long-period radio transient source, which received the designation ASKAP J142431.2–612611 (ASKAP J1424 for short). The newfound transient has a period of approximately 36 minutes and its nature is unknown. The finding was reported in a paper published March 9 on the arXiv preprint server.

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Discrete time crystal acts as a usable sensor for weak magnetic oscillations

The bizarre properties of discrete time crystals could be harnessed to detect extremely subtle oscillations of magnetic fields, physicists in the US and Germany have revealed. Publishing their results in Nature Physics, a team led by Ashok Ajoy at the University of California, Berkeley, show for the first time that these exotic materials could have practical uses far beyond their current status as an impractical curiosity.

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Large craters offer clues to the origin of asteroid 16 Psyche

Even 200 years after asteroid 16 Psyche was discovered, astronomers continue to puzzle over its formation. Psyche is the 10th-most massive asteroid in the main belt between Mars and Jupiter, and the largest known metallic asteroid, at 140 miles in diameter.

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A 60-year old mystery about the moon’s magnetosphere is finally solved

One particularly well-known fact about the moon is that it doesn’t have much of a magnetosphere to speak of. There’s no blanket to protect it from the solar wind ravaging its surface, blowing away its atmosphere and charging the notoriously dangerous dust particles that make up its regolith. However, scientists have also known for around 60 years that some parts of the moon do experience sudden spikes in a magnetic field—some of which are up to 10 times stronger than the background magnetization.

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Q&A: Reevaluating reaction rates to better understand the stars

Thermonuclear reaction rates power the models that explain how stars live, explode and create the elements. A new study co-authored by NC State faculty member Richard Longland provides a comprehensive, statistically grounded reevaluation of these rates, offering a stronger foundation for interpreting astronomical observations and simulating stellar environments.

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Las Vegas sheriff rejects judge’s order to release 35-arrest repeat offender

The case, which is headed to the Nevada Supreme Court, could clarify who determines eligibility for the department’s GPS monitoring program

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Life, but not as we know it

Here is a problem that has been quietly gnawing at astronomers for decades. The standard approach to detecting life on other worlds involves scanning exoplanet atmospheres for oxygen, methane, and ozone, whose presence is difficult to explain without biology. It’s a clever idea, but it carries a hidden flaw. That entire shopping list was written by studying Earth. It is, inevitably, a search for life like us.

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JWST maps Europa’s CO₂ beyond Tara Regio, hinting at subsurface exchange

Europa is not supposed to look the way it does. Jupiter’s icy moon is scarred by a chaotic patchwork of fractured terrain, crisscrossed ridges, and disrupted surface regions that suggest something dynamic is happening beneath its frozen shell. Scientists have long suspected that a vast liquid ocean, kept warm by the gravitational kneading of Jupiter’s enormous gravity, lies hidden beneath that ice. Now, a new study using the James Webb Space Telescope is adding a crucial piece to the puzzle, and the implications reach right to the heart of astrobiology.

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A galaxy next door is transforming, and astronomers can see it happening

The Small Magellanic Cloud (SMC) is one of the Milky Way’s closest galactic neighbors—a small, gas-rich galaxy visible to the naked eye from the southern hemisphere, and bound to our galaxy by gravity, alongside its companion, the Large Magellanic Cloud (LMC). All three galaxies have been interacting for hundreds of millions of years.

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A clear roadmap for engineering combs of light

Optical frequency combs—laser sources that emit evenly spaced colors of light—are foundational, ubiquitous tools for precision measurement, found in optical clocks, gas-sensing spectrometers, and instruments that detect the light signatures of exoplanets. Traditionally, frequency combs are produced by large, fiber-laser systems ranging from the size of a shoebox to a refrigerator.

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Laser-assisted electron scattering seen with circularly polarized light for the first time

Researchers from Tokyo Metropolitan University have succeeded in detecting laser-assisted electron scattering (LAES) using circularly polarized light for the first time. The use of circularly polarized light promises valuable insights into how atomic scale “helicity” impacts how electrons interact with matter and light.

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Not just spin—electron orbitals can provide new method for controlling magnetism

Research is actively underway to develop a “dream memory” that can reduce heat generation in smartphones and laptops while delivering faster performance and lower power consumption. Korean researchers propose a new possibility for controlling magnetism using the exchange interaction of electron orbitals—the motion of electrons orbiting around an atomic nucleus—rather than relying on the conventional exchange interaction of electron spin, the rotational property of electrons inside semiconductors.

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To protect Artemis II Astronauts, NASA experts keep their eyes on the sun

As four astronauts travel around the moon on NASA’s Artemis II mission, they will venture beyond Earth’s protective magnetic field. The crew’s spacecraft, Orion, will carry and protect them as they journey into deep space and serves as the main protection against the sun’s intense power. During their 10-day flight, NASA and the National Oceanic and Atmospheric Administration (NOAA) will monitor the sun around the clock and translate space weather conditions into real-time decisions to protect the astronauts.

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