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A tiny 518-million-year-old sea creature has revealed the earliest known evidence of the structures that eventually became spiders’ fangs。 Hidden inside the fossil were pincerlike limbs and preserved soft tissues that help explain how the ancestors of spiders and scorpions evolved into formidable hunters
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
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
The UK's AI Safety Institute said recent behaviour from Anthropic and OpenAI models was malicious and unprecedented
25 billion program restored, but judge ruled race provision unconstitutional
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
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
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 deal takes the maker of titles including The Sims and EA FC into private ownership - and loads it with debt
"The models are forecasting something outside the envelope of anything we have ever observed
Snapchat, YouTube, LinkedIn, and Substack are trying to combat the proliferation of fake AI content
A group of brain cells called orexin neurons appears to help us keep working when reaching a reward becomes increasingly difficult。 Blocking their activity weakened motivation in rats, pointing to a possible new target for understanding why people sometimes struggle to sustain goal-directed behavior
Security researcher James Kettle tried to push the limit of AI’s hacking abilities—and discovered how effective it can be when combined with human expertise
The state attorney general said in an antitrust lawsuit filed on Tuesday that the company was abusing its market power to keep its delivery costs low
The camera flash will evolve into a multicolor LED that illuminates when your phone is face down
Tech is being used to watch for wildfires but firefighters are still needed to put them out