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New controls can stretch, blur and even reverse quantum time flow

In new research published in Physical Review X, scientists have designed quantum control protocols that generate processes more consistent with time flowing backward than forward. The protocols—techniques to control quantum systems—modify a quantum system’s “arrow of time,” the concept of time as moving in one forward direction. The work opens up possibilities for energy extraction from quantum systems and for quantum state preparation.

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BWC: Va. officer stops ‘bloodbath,’ fatally shoots man actively stabbing family member

The Fairfax County PD chief says rapid response likely prevented further deaths as officers entered a dark apartment with multiple victims

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Chuck Norris, ‘Walker, Texas Ranger’ star and former air policeman, dies at 86

The actor, Air Force air policeman and Texas reserve officer maintained a lifelong connection to law enforcement

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ALICE sees new sign of primordial plasma in proton collisions

The ALICE Collaboration takes a step further in addressing the question of whether a quark–gluon plasma can be formed in proton–proton and proton–nucleus collisions. In the first few microseconds after the Big Bang, the universe was in an extremely hot and dense state of matter known as quark–gluon plasma (QGP), which can be reproduced with high-energy collisions between heavy ions such as lead nuclei.

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Smile mission set for April 9 launch to image Earth’s magnetic field in X-rays

The Smile mission is set to launch on a Vega-C rocket from Europe’s Spaceport in French Guiana on Thursday, April 9, at 08:29 CEST/07:29 BST/03:29 local time.

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NYC Mayor Mamdani moves to reduce NYPD role in mental health, crisis calls

NYC Mayor Mamdani’s new Office of Community Safety will oversee mental health response, violence prevention and victim services as part of a broader strategy to reduce non-criminal demands on NYPD

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A new entanglement-enhanced quantum sensing scheme

Over the past decades, quantum scientists have introduced various technologies that operate leveraging quantum mechanical effects, including quantum sensors, computers and memory devices. Most of these technologies leverage entanglement, a quantum phenomenon via which two or more particles become intrinsically linked and share a unified quantum state, irrespective of the distance between them.

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NASA returns moon rocket to pad, eyeing April 1 launch

NASA on Thursday began returning its towering SLS rocket and Orion spacecraft to its Florida launch pad ahead of a planned flyby of the moon, after completing necessary repairs.

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Meteorite hunters scour Ohio for fragments of 7-ton space rock that crashed into Earth

Meteorite hunters fanned out across a wide swath of Ohio on Thursday, hoping to collect fragments of an estimated 7-ton (6,350 kilograms) space rock that crashed into Earth this week after a dazzling fireball that was seen from hundreds of miles away.

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NASA’s Artemis missions promise a return to the moon—but when?

NASA’s Artemis II mission plans to fly around the moon and back this April. Four astronauts will board the mammoth Space Launch System (SLS) rocket for the test flight, spending 10 days off-Earth. They won’t be touching down—this mission is intended to pave the way for humans to once again place their boots in the sticky, clumpy soil of our closest celestial neighbor.

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Project Hail Mary is packed with hard science. An astrophysicist breaks it down

As an astrophysicist, my world revolves around the wonders of space and the mysteries of the universe. This means I can be a tough critic of science fiction books and films that explore these topics.

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‘Miracle’: Europe reconnects with lost spacecraft

The European Space Agency announced Thursday it has re-established communication with a spacecraft that is part of its Proba-3 mission, after losing contact with the satellite a month ago.

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Ex-LAPD commander fired over public intoxication arrest wins $5.7M in discrimination suit

Nicole Mehringer alleged the LAPD held her to a stricter standard after an alcohol-related arrest, while male officers in similar situations kept their jobs or retired without discipline

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JUICE is planning to do science on Jupiter’s ‘minor’ moons too

The European Space Agency’s (ESA’s) Jupiter Icy Moons Explorer (JUICE) probe is on its (very long) way to Jupiter, and will finally arrive at the King of Planets in 2031. Its primary mission is to focus on the “big three” icy moons—Ganymede, Europa, and Callisto. But while JUICE is busy mapping Ganymede’s magnetic field, it will also be keeping a sharp eye on the other 94 moons in the Jupiter system. A recent paper published in Space Science Reviews by Tilmann Denk of DLR, Germany’s space research association, and his co-authors showcases just how much “bonus science” JUICE is expected to squeeze out of these other targets.

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Gravitational waves leave imprints on light emitted by atoms, theoretical study predicts

Gravitational waves are ripples in spacetime produced by violent cosmic events, such as the merging of black holes. So far, direct detections have relied on measuring tiny distance changes over kilometer-scale instruments. In a new theoretical study published in Physical Review Letters, researchers at Stockholm University, Nordita, and the University of Tübingen propose an unconventional approach: tracking how gravitational waves reshape the light emitted by atoms. The work describes a possible detection route, but an experimental demonstration remains for the future.

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