共找到 20 条结果
A spectacular fossil site in Canada contains 567-million-year-old creatures that may represent some of the earliest animals to move, reproduce sexually, and develop recognizable body plans。 The discovery pushes key evolutionary milestones back by up to 10 million years and suggests complex animal life may have first flourished in the deep ocean
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
Baseboard management controllers from the world's biggest manufacturers are a security mess
The UK's AI Safety Institute said recent behaviour from Anthropic and OpenAI models was malicious and unprecedented
Millions of sperm do not always compete alone—some species send them into action as coordinated teams。 A sweeping evolutionary study found that this cooperation is widespread among arthropods and has repeatedly emerged and vanished over hundreds of millions of years。 The discovery challenges the classic “fastest sperm wins” story and could influenc
暂无摘要,请点击原文查看详情
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 deal takes the maker of titles including The Sims and EA FC into private ownership - and loads it with debt
Online speculation over the weight loss of celebrities like Ariana Grande—even out of genuine concern—can make things worse for people struggling with eating disorders
Google Finance and Apple’s Stocks app have added new features over the years to make them more useful for tracking the markets and your investments
Hey HN, we’re Will & Johnny from ProvenMetal (https://provenmetal。 You send us design files or specs and we give you assembled boards domestically in days。The US produced 30% of PCBs globally in 2000, now they produce 4%
"The models are forecasting something outside the envelope of anything we have ever observed
Zulfi Alam thinks his team doesn’t need to “prove” they engineered a new state of matter in their bid to reinvent computing。 Science would disagree
TikTok did not give a detailed reason for the layoffs, which will shutter its Nashville office
Here’s when some of this year’s most anticipated astronomical events will happen and the best way to observe them
A mathematician working at Anthropic says he used the AI model Claude Fable 5 to uncover a remarkably simple counterexample to the Jacobian conjecture, a famous problem that has resisted mathematicians for more than a century。 The result shows that the conjecture is false in three dimensions and above, although the original two-dimensional version
Tech is being used to watch for wildfires but firefighters are still needed to put them out
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