Science
fromArs Technica
2 hours agoNASA provides some details about Artemis III, but hard decisions remain
Artemis III will likely rendezvous and dock with immature lunar lander pathfinders, raising life-support and “test like you fly” concerns.
There is the bedrock of research done on board the ISS, increased capital for space startups like Varda, and the rise of reusable rockets that has brought down the cost of access to space and increased the cadence. Varda's spacecraft, with a mass of a few hundred kilograms, typically fly on SpaceX's periodic Transporter missions that launch dozens of space missions at a time.
c, Left, proportion of dual fluorescence-labelled cells for connexin pairs with known docking compatibility profiles. Right, FETCH scores for Cx43(F199L)-Cx43(F199L) and Cx26(K168V N176H)-Cx43 (ref. 26). Blue lines on the right-hand graph are the mean ± s.e.m. score for the known-negative distribution of connexin pairs with docking incompatibility. d, Schematic of M. americana Cx34.7 and Cx35 mutations in EL1 and EL2 used to screen for heterotypic-exclusive hemichannels.
Experienced researchers are less likely to produce 'disruptive' science than are those just starting their careers, finds an analysis of the scientific papers published by 12.5 million researchers over 60 years. The authors discovered that older researchers are better at connecting existing ideas to produce new knowledge than are younger researchers. But those with more experience are worse at achieving massive breakthroughs that overhaul, or disrupt, entire fields of research - as happened with innovations such as the discovery of the structure of DNA.
Biotech startups like Herasight in North Carolina, Nucleus Genomics in New York and Orchid Health in California use polygenic risk scores to predict which embryos are most likely to produce tall, smart, healthy children. The technology analyzes genetic variants to estimate everything from Alzheimer's risk to propensity for baldness. "We help people have their best babies," Kian Sadeghi, founder of Nucleus Genomics told NPR, calling it "genetic optimization." So far, the companies say they've screened thousands of embryos for hundreds of prospective parents and already helped create dozens, possibly hundreds, of genetically-screened babies.
I eventually found a vision training program designed to improve focus. NASA doctors told me they thought it wouldn't work, but they didn't see any harm in trying it. So I did. The exercises involved relaxing my eyes and learning to "focus beyond" an object so it would come into view, rather than forcing my eyes to strain. I also used undercorrected lenses, so my eyes had to work harder. It was enough to improve my vision by a couple of lines to pass the eye exam and requalify.
“I love this event,” said President Alan Garber. “Turning an idea into a pitch, a pitch into a contender, a contender into a finalist, and a finalist into a prize winner. The excitement is palpable. Congratulations to all of you. Your curiosity and drive moved you to action, and we are eager to see where your ambition leads.”
The launch took place on March 23 at 8:24 pm Moscow time from the military's Plesetsk Cosmodrome using the Soyuz-2.1B launcher, and marked the first step in building an infrastructure that is expected to have at least 300 satellites by 2030. "The launch marks the transition from the experimental phase to the creation of a communication service," Bureau 1440 announced on Telegram. "The Bureau 1440 team completed this path in 1,000 days, which is the time between the launch of the experimental satellites and the production satellites."
“NTIA is launching spectrum.gov as a centralized hub for updates on federal spectrum policy and 6G pipeline progress, as well as our efforts to unleash the space economy and ensure the U.S. leads the world at WRC-27,” Assistant Secretary of Commerce for Communications and Information and NTIA Administrator Arielle Roth said in a press release. “By providing greater visibility into our work, we're raising the bar for delivering results.”
Random numbers, words or distributions of events, he says, can appear to clump and cluster in patterns if you make the numbers big enough. And the missing scientist situation, he says, is a case for the improbability principle.
The solidified oil is an indirect record, or proxy, of the past that scientists rely on because we don't have a time machine. Researchers trying to understand Earth's climate and ecosystems need to trace rainfall, ice coverage, fire and other factors over thousands or millions of years—far longer than human records.
Our findings show that the brain is far more active and capable during unconsciousness than previously thought. Even when patients are fully anesthetized, their brains continue to analyze the world around them. This work pushes us to rethink what it means to be conscious. The brain is doing much more behind the scenes than we fully understand.
The Defense Advanced Research Projects Agency (DARPA) quietly published a report detailing how scientists were working on a new kind of brain-computer interface that would form a direct link between military personnel and weapons of war without requiring surgery.