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NASA found intriguing rocks on Mars, so where does that leave Mars Sample Return?

arstechnica.com Unknown 2025-10-02 07:21:03

NASA's interim administrator Sean Duffy was fired up on Wednesday when he joined a teleconference to talk about new scientific findings that concerned the potential for life to have once existed on Mars. "This is exciting news," said Duffy about an arrow-shaped rock on Mars found by NASA's Perseverance rover. The rock contained chemical signatures and structures that could have been formed by ancient microbial life. The findings were intriguing, but not conclusive. Further study of the rocks in

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Tonverk is Elektron’s new polyphonic sample mangler and groovebox

theverge.com Terrence O'Brien 2025-10-03 03:36:45

Elektron has built a cult-like following over the years with its unique and, at times, esoteric take on electronic musical instruments. On paper, Tonverk is a seemingly over-powered sampler that continues that tradition. It’s the rare piece of hardware capable of creating multisampled instruments on its own. It turns a single sample track into a nesting doll of multiple samples. And it’s loaded with an absolutely absurd amount of routing and audio processing features. Tonverk is certainly capabl

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Perseverance Rover Finds Potential Sign of Ancient Life in Martian Rock

gizmodo.com Ellyn Lapointe 2025-10-05 11:37:21

Today, NASA officials unveiled intriguing new findings from “Sapphire Canyon,” the 25th geological sample collected by the Perseverance Mars rover. This rock core has captivated scientists ever since Perseverance extracted it in July 2024, as it may help them determine if microbial life ever existed on the Red Planet. Now, NASA has revealed that the initial analysis of the Sapphire Canyon sample could not rule out a biological origin for its distinctive features. “This very well could be the cl

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An eyecare foundation model for clinical assistance

news.ycombinator.com Wu 2025-10-24 03:57:40

a) For disease detection on CFP, the sample sizes and P values are: DR (n = 1501, P = 0.042), glaucoma suspect (n = 405, P = 0.533), AMD suspect (n = 370, P = 0.627), MMD (n = 643, P = 0.030). For disease detection on OCT, the sample sizes and P values are: ciDME (n = 523, P = 0.002), glaucoma (n = 412, P = 0.333), AMD (n = 379, n = 0.036). The sample size for cataract detection on external eye photo was 198 and the P value was 0.102. Error bars represent 95% CI. b)Segmentation dice similarity c

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Simulating and Visualising the Central Limit Theorem

news.ycombinator.com Greg Foletta 2025-11-18 11:11:51

Simulating and Visualising the Central Limit Theorem Categories: Statistics R 34 minutes read I completed a Computer Science degree at uni, and bundled a lot of maths subjects in as electives: partial differential equations, vector calculus, discrete maths, linear algebra. For some reason however I always avoided statistics subjects. Maybe there’s a story to be told about a young person finding uncertainty uncomfortable, because twenty years later I find statistics, particularly the Bayesia

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How We’ll Know for Sure If Microplastics Are Destroying Our Health

gizmodo.com Margherita Bassi 2025-11-20 03:35:03

Researchers have found plastic in almost every corner of the human body, from our brains and poop to blood and testicles (at least it’s not making our stomachs crunch yet). Is this plastic contamination bad for us? While the answer to that question might seem like a no-brainer—and certainly no one is crazy enough to theorize that microplastics in breast milk are a good thing—there haven’t been any human trials to confirm that microplastics are detrimental to human health. Some research has simp

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How to Find Out If Microplastics Are Actually Destroying Our Health

gizmodo.com Margherita Bassi 2025-11-20 15:35:03

Researchers have found plastic in almost every corner of the human body, from our brains and poop to blood and testicles (at least it’s not making our stomachs crunch yet). Is this plastic contamination bad for us? While the answer to that question might seem like a no-brainer—and certainly no one is crazy enough to theorize that microplastics in breast milk are a good thing—there haven’t been any human trials to confirm that microplastics are detrimental to human health. Some research has simp

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Monte Carlo Crash Course: Quasi-Monte Carlo

news.ycombinator.com Max Slater 2025-11-29 12:53:08

Monte Carlo Crash Course Quasi-Monte Carlo We’ve learned how to define and apply Monte Carlo integration—fundamentally, it’s the only tool we need. In the remaining chapters, we’ll explore ways to reduce variance and successfully sample difficult distributions. Variance & Correlation In chapter two, we determined that the variance of a Monte Carlo estimator is inversely proportional to its sample count. Empirically, we confirmed that our integrators’ expected error scaled with $$\frac{1}{\sq

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How I keep up with AI progress

news.ycombinator.com Unknown 2026-01-09 17:36:39

Last Updated: 30th June 2025 Generative AI has been the fastest moving technology I have seen in my lifetime. Its also happens to be terribly misunderstood. We have already seen large companies and even governments ship dysfunctional or even dangerous AI products. Sufficiently uninformed people misunderstand how to apply AI with concretely negative consequences. The most common errors of misunderstanding are either underestimation (“it’s all hype that will blow over”) or overestimation (“I do

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How I keep up with AI progress (and why you must too)

news.ycombinator.com Unknown 2026-01-09 23:36:39

Last Updated: 30th June 2025 Generative AI has been the fastest moving technology I have seen in my lifetime. Its also happens to be terribly misunderstood. We have already seen large companies and even governments ship dysfunctional or even dangerous AI products. Sufficiently uninformed people misunderstand how to apply AI with concretely negative consequences. The most common errors of misunderstanding are either underestimation (“it’s all hype that will blow over”) or overestimation (“I do

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Research roundup: 6 cool science stories we almost missed

arstechnica.com Unknown 2026-02-17 00:07:09

It's a regrettable reality that there is never enough time to cover all the interesting scientific stories we come across each month. In the past, we've featured year-end roundups of cool science stories we (almost) missed. This year, we're experimenting with a monthly collection. June's list includes the final results from the Muon g-2 experiment, re-creating the recipe for Egyptian blue, embedding coded messages in ice bubbles, and why cats seem to have a marked preference for sleeping on thei

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Tiny orange beads found by Apollo astronauts reveal Moon's explosive past

news.ycombinator.com Unknown 2026-02-18 05:09:36

The Apollo astronauts didn't know what they'd find when they explored the surface of the moon, but they certainly didn't expect to see drifts of tiny, bright orange glass beads glistening among the otherwise monochrome piles of rocks and dust. The beads, each less than 1 mm across, formed some 3.3 to 3.6 billion years ago during volcanic eruptions on the surface of the then-young satellite. "They're some of the most amazing extraterrestrial samples we have," said Ryan Ogliore, an associate prof

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Latest Tech News

NASA found intriguing rocks on Mars, so where does that leave Mars Sample Return?

Tonverk is Elektron’s new polyphonic sample mangler and groovebox

Perseverance Rover Finds Potential Sign of Ancient Life in Martian Rock

An eyecare foundation model for clinical assistance

Simulating and Visualising the Central Limit Theorem

How We’ll Know for Sure If Microplastics Are Destroying Our Health

How to Find Out If Microplastics Are Actually Destroying Our Health

Monte Carlo Crash Course: Quasi-Monte Carlo

How I keep up with AI progress

How I keep up with AI progress (and why you must too)

Research roundup: 6 cool science stories we almost missed

Tiny orange beads found by Apollo astronauts reveal Moon's explosive past

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