Articles
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1 week ago |
newscientist.com | Alex Wilkins
Is dark energy changing, or is it just more of the same? Last month, astronomers announced the startling finding that dark energy – which is thought to cause the accelerating expansion of the universe – might weaken over time. This has forced physicists to consider upending the standard cosmological model of the universe but now, some researchers are saying this may be premature.
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1 week ago |
newscientist.com | Alex Wilkins
An advanced version of the famous double-slit experiment has directly measured a single photon in two places at once – or at least, that’s the claim made by a team of physicists who say these results could destroy the concept of a multiverse. This interpretation remains highly contested, however, with other physicists arguing that the experiment can’t really tell us anything new about the nature of reality.
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2 weeks ago |
newscientist.com | Alex Wilkins
Astronomers are still arguing about whether we have recently seen the “strongest evidence” for alien life yet, or simply nothing at all. Now, the researchers behind the original bold claim have reanalysed the data and say they have yet more evidence for molecules with no origin outside of biology – but critics say this new work undermines the original efforts.
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2 weeks ago |
newscientist.com | Alex Wilkins
The AI ConEmily Bender and Alex Hanna (Bodley Head (UK); Harper (US))An alternative history of Silicon Valley can be told not through its successes – products like the iPhone, Facebook or Google – but through its scams, like Theranos’s faulty blood tests or FTX’s dodgy crypto accounts. From a bird’s eye view, these companies’ stories share a formula: invent a world-changing idea, generate hype, convince investors of potential, and then expand as far and fast as possible.…
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2 weeks ago |
newscientist.com | Alex Wilkins
An unusually dense galaxy could be the first clear evidence for the existence of an unconventional form of βstickyβ dark matter, altering our understanding of this mysterious cosmic substance. In the standard picture of cosmology, so-called cold dark matter only interacts with the rest of the universe through gravity, which causes it to bunch together in invisible, puffy clouds around galaxies. We can map these clouds indirectly by measuring the gravitational pull they exert, which bends…
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The asteroid Bennu, which NASA brought back samples from to Earth in 2023, is baffling scientists with its abundance of nitrogen and odd magnetic properties. https://t.co/tDkB8geBg6
A computer contained in a thin thread of stitchable fabric could be used to record, and understand, all sorts of information about the body that devices like Apple watches can't. And it's being tested on Canadian and US soldiers right now, in the Arctic. https://t.co/HOeJ3T4OE9
50 years after it was first dreamt up by Douglas Hofstadter, this fascinating fractal butterfly has been found in a real physical system (in graphene, no less)! It's butterflies all the way down 🦋 https://t.co/dRfxIQ3yDg