搜索结果：Journal of the American Medical Directors Association

Dark matter particles may exert a hidden force on one another, but its effects are stranger than expected。 An extra attraction helps the particles cluster, yet it also makes dark matter effectively lighter as the Universe expands。 That weakens its gravitational impact and usually slows the growth of cosmic structure rather than accelerating it

A new 3D printing technique can produce exceptionally hard tungsten carbide cobalt while using less of its expensive raw materials。 By softening rather than fully melting the material, researchers created defect-free samples with industrial-grade hardness and opened the door to more efficient manufacturing

For nearly two years, researcher Vangelis Stykas has maintained access to North Korean hackers’ servers。 His work shows they pulled off intrusions in a shocking number of systems across the globe

When atomic nuclei smash together at nearly the speed of light, they create the hottest fluid in the universe, but scientists may have overlooked one of its most important forces。 New simulations reveal that extreme acceleration builds up along the edges of quark-gluon plasma, helping drive its explosive expansion。 This acceleration may do far more

August brings four major celestial events, including a solar eclipse and the peak of the Perseid meteor shower。 Dark New Moon skies could make the Perseids especially impressive, while Venus will blaze in the west after sunset。 A deep partial lunar eclipse closes the month, darkening most of the Moon

Although no one captured a direct image of the impact, scientists have detected signals confirming the rocket hit the lunar surface。 Orbiters could provide the first images of the crash site in the coming days

The UK's AI Safety Institute said recent behaviour from Anthropic and OpenAI models was malicious and unprecedented

Baseboard management controllers from the world's biggest manufacturers are a security mess

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The office was home to members of the app’s content moderation team

Hidden moon ice may reveal itself through the way it bends and reflects vibrations from moonquakes。 The technique could help astronauts locate vital water supplies and uncover clues about the origins of Earth’s oceans

At the Black Hat security conference, the AI giant revealed new details about how its agents went rogue, hacked several other companies—and did it all right under the company’s nose

The deal takes the maker of titles including The Sims and EA FC into private ownership - and loads it with debt

The second stage of a Falcon 9 rocket, which sent two private landers to the moon last year, will collide with the moon early Wednesday morning

Photons traveling through a cloud of atoms can emerge so early that they appear to have spent a negative amount of time inside。 Researchers tested whether this was merely a misleading feature of the light pulse by making extremely weak measurements of the atoms。 Surprisingly, the atoms confirmed the same negative dwell time

"The models are forecasting something outside the envelope of anything we have ever observed

WIRED spoke with an engineer who was interviewed by Edward “Big Balls” Coristine for a government engineering role at the NDS, the White House agency staffed by other DOGE veterans