An anonymous reader shares a report: It's surprisingly easy for someone to mess with the makeup of Earth's atmosphere, regardless of the consequences that could have for our planet. Now, as part of its plans to address security risks posed by climate change, the European Union is calling for talks on a potential international framework on how to treat deliberately atmosphere-altering technologies, AKA geoengineering.

The issue is that scientists aren't quite sure how much good that would do or whether geoengineering might inadvertently trigger new problems. That's why the European Commission says the world needs to start thinking about rules on geoengineering. Without them, climate vigilantes could decide to go ahead with their experiments without any oversight or accountability. In fact, that's already started to happen, albeit on a small scale.

An anonymous reader quotes a report from The Hill: Asked June 26 about allegations of secret UFO retrieval and reverse-engineering programs, Senate Intelligence Committee Vice Chairman Marco Rubio (R-Fla.) made several stunning statements. In an exclusive interview, Rubio told NewsNation Washington correspondent Joe Khalil that multiple individuals with "very high clearances and high positions within our government" "have come forward to share" "first-hand" UFO-related claims "beyond the realm of what [the Senate Intelligence Committee] has ever dealt with."

Rubio's comments provide context for a bipartisan provision adopted unanimously by the Senate Intelligence Committee, which would immediately halt funding for any secret government or contractor efforts to retrieve and reverse-engineer craft of "non-earth" or "exotic" origin. This extraordinary language added to the Senate version of the Intelligence authorization bill mirrors and adds significant credibility to a whistleblower's recent, stunning allegations that a clandestine, decades-long effort to recover, analyze and exploit objects of "non-human" origin has been operating illegally without congressional oversight.

Additionally, the bill instructs individuals with knowledge of such activities to disclose all relevant information and grants legal immunity if the information is reported appropriately within a defined timeframe. Moreover, nearly 20 pages of the legislation appear to directly address recent events by enhancing a raft of legal protections for whistleblowers while also permitting such individuals to contact Congress directly. Researcher and congressional expert Douglas Johnson first reported on and analyzed the remarkable bill language, which, if it passes the House, could become law this calendar year.

Apple has uploaded the entire first episode of its sci-fi series "Silo" to Twitter, allowing anyone there to watch the opening installment for free. Engadget reports: Silo is based on the science fiction novel Wool by American author Hugh Howey. It takes place on a post-apocalyptic version of Earth, where what remains of humanity is confined to the Silo, a 144-story underground bunker that serves as a self-sufficient underground community. The citizens are told that the world outside the Silo is perilous, but questions arise about what truly lies beyond. It's a clever premise that allows showrunner Graham Yost to explore the book's themes about truth vs. fiction and information as power. Apple has reportedly renewed the series for a second season. You can watch the full episode on Twitter here.

An ancient Nevada lakebed could become a vast source of the lithium used in electric car batteries, reports the Associated Press. But "NASA says the same site — flat as a tabletop and undisturbed like none other in the Western Hemisphere — is indispensable for calibrating the razor-sharp measurements of hundreds of satellites orbiting overhead." At the space agency's request, the U.S. Bureau of Land Management has agreed to withdraw 36 square miles (92 square kilometers) of the eastern Nevada terrain from its inventory of federal lands open to potential mineral exploration and mining. NASA says the long, flat piece of land above the untapped lithium deposit in Nevada's Railroad Valley has been used for nearly three decades to get measurements just right to keep satellites and their applications functioning properly. "No other location in the United States is suitable for this purpose," the Bureau of Land Management concluded in April after receiving NASA's input on the tract 250 miles (400 kilometers) northeast of Las Vegas...

In Railroad Valley, satellite calculations are critical to gathering information beamed from space with widespread applications from weather forecasting to national security, agricultural outlooks and natural disasters, according to NASA, which said the satellites "provide vital and often time-critical information touching every aspect of life on Earth." That increasingly includes certifying measurements related to climate change. Thus the Nevada desert paradox, critics say. Although lithium is the main ingredient in batteries for electric vehicles key to reducing greenhouse gases, in this case the metal is buried beneath land NASA says must remain undisturbed to certify the accuracy of satellites monitoring Earth's warming atmosphere...

The area's unchanged nature has allowed NASA to establish a long record of images of the undisturbed topography to assist precise measurement of distances using the travel time of radio signals and assure "absolute radiometric calibration" of sensors on board satellites. "Activities that stand to disrupt the surface integrity of Railroad Valley would risk making the site unusable," Jeremy Eggers, a spokesman for NASA's Goddard Space Flight Center in Greenbelt, Maryland, told The Associated Press.
One company with most of the mining rights says the tract's withdrawal will put more than half the site's value out of reach, according to the article.

But the Associated Press got a supportive quote for the move from the satellite imaging company Planet Labs, which has relied on NASA's site to calibrate more than 250 of its satellites since 2016. "As our nation becomes ever more impacted by an evolving and changing environment, it is critical to have reliable and accurate data and imagery of our planet."

The "BepiColombo" mission, a joint European-Japanese effort, "has recently completed its third of six planned flybys of Mercury, capturing dozens of images in the process," reports the Byte: At its closest, the spacecraft soared within just 150 miles of Mercury. This occurred on the night side of the planet, however, too dark for optimal imaging. Instead, the first and nearest image was taken 12 minutes after the closest approach, at the still impressive proximity of some 1,100 miles above the surface.
Now the ESA has spliced together 217 images from that flyby into a short video, which culminates with a zoomed-in closeup of Mercury's cratered surface. And the music in that video had a little help from AI, reports Phys.org: Music was composed for the sequence by ILÄ (formerly known as Anil Sebastian), with the assistance of AI tools developed by the Machine Intelligence for Musical Audio group, University of Sheffield.

Music from the previous two flyby movies — composed by Maison Mercury Jones' creative director ILÄ and Ingmar Kamalagharan — was given to the AI tool to suggest seeds for the new composition, which ILÄ then chose from to edit and weave together with other elements into the new piece.

The team at the University of Sheffield has developed an Artificial Musical Intelligence (AMI), a large-scale general-purpose deep neural network that can be personalized to individual musicians and use cases. The project with the University of Sheffield is aimed at exploring the boundaries of the ethics of AI creativity, while also emphasizing the essential contributions of the (human) composer.
From the ESA's announcement: BepiColombo's next Mercury flyby will take place on 5 September 2024, but there is plenty of work to occupy the teams in the meantime... BepiColombo's Mercury Transfer Module will complete over 15 000 hours of solar electric propulsion operations over its lifetime, which together with nine planetary flybys in total — one at Earth, two at Venus, and six at Mercury — will guide the spacecraft towards Mercury orbit.

The ESA-led Mercury Planetary Orbiter and the JAXA-led Mercury Magnetospheric Orbiter modules will separate into complementary orbits around the planet, and their main science mission will begin in early 2026.
One spaceflight blog notes the propulsive energy required for an eventual entry into the orbit of Mercury "is greater than that of a mission to fly by Pluto.

"Only one other spacecraft has orbited Mercury, and that was NASA's MESSENGER probe, which orbited the planet from 2011 to 2015."

Finland's University of Jyväskylä has an announcement: an experiment performed in its accelerator lab "has succeeded in producing a previously unknown atomic nucleus."

Dubbed "190-Astatine," it's made from 85 protons and 105 neutrons.. The nucleus is the lightest isotope of astatine discovered to date. Astatine is a fast-decaying, and therefore rare element. It has been estimated that in the Earth's crust, there is no more than one tablespoon of astatine...

The new isotope was produced in the fusion of 84Sr beam particles and silver target atoms. The isotope was detected among the products by using the detectors of RITU recoil separator... "The studies of new nuclei are important for understanding the structure of atomic nuclei and the limits of known matter," says Doctoral Researcher Henna Kokkonen from the Department of Physics, University of Jyväskylä.

Motherboard reports: Scientists are currently searching for the submerged remains of an interstellar object that crashed into the skies near Papua New Guinea in January 2014 and probably sprinkled material from another star system into the Pacific Ocean, according to an onboard diary by Avi Loeb, the Harvard astronomer who is leading the expedition. The effort, which kicked off on June 14, aims to recover what is left of the otherworldly fireball using a deep-sea magnetic sled.

The team has already turned up "anomalous" magnetic spherules, steel shards, curious wires, and heaps of volcanic ash, but has not identified anything that is unambiguously extraterrestrial — or interstellar — at this point. However, Loeb is optimistic that the crew will identify pieces of Interstellar Meteor 1 (IM1), the mysterious half-ton object that struck Earth nearly a decade ago, which he thinks could be an artifact, or "technosignature," from an alien civilization...

The fireball that sparked the hunt smashed into the atmosphere on January 8, 2014, and was detected by NASA's Center for Near-Earth Object Studies (CNEOS), which keeps track of extraterrestrial impacts using a network of sensors around the world. Years later, Loeb and his student, Amir Siraj, concluded that the meteor's high velocity at impact suggested that it was interstellar in origin, a hypothesis that was ultimately supported by the United States Space Command using classified sensor data.
Today Loeb posted on Medium that "by now, we have 25 spherules from the site of the first recognized interstellar meteor," with a cumulative weight of about 30 milligrams — estimated to be one part in ten million of the original fireball's mass: The success of the Interstellar Expedition constitutes the first opportunity for astronomers to learn about interstellar space by using a microscope rather than a telescope. It opens the door for a new branch of observational astronomy.
Updates about the expedition are running on the Mega Screen in New York's Times Square, Motherboard reports. And Loeb writes that "If further analysis of the 50 milligrams retrieved from IM1's site will inform us that IM1's composition requires a technological origin, we will know that we are not alone."

He also shared an email that responded to his online diaries: I had a heart attack four weeks ago and am now in rehab. I read your IM1 diary every day and it always gives me new courage to face life. There are still so many things to discover and I want to live long enough to see some of them. I wish you and your team all the best.

The EPA is assembling its first-ever National Environmental Youth Advisory Council, a group of young people to weigh in on issues that affect their communities. From a report: "We can't tackle the environmental challenges of our time without input from our younger communities, who've long been at the forefront of social movements," EPA Administrator Michael Regan said in a press release yesterday. The worst effects of climate change are still ahead as greenhouse gas emissions from fossil fuels keep building up in Earth's atmosphere. The actions policymakers take today to curb that pollution will decide what kind of planet younger generations will inherit. So it makes sense for the EPA to create seats for them at the table.

According to AST SpaceMobile, the company managed to successfully transmit a 4G LTE signal from space that was picked up by "everyday, off-the-shelf smartphones." Next, AST will try and transmit a 5G connection via its BlueWalker 3 (BW3) satellite. The Verge reports: Testing was conducted in Hawaii on AT&T's spectrum using Nokia RAN technology, and the signal, which was beamed from AST's satellite in low Earth orbit, reached speeds of up to 10.3Mbps. That's fast enough for some video streaming, general internet use, and more ordinary cell phone usage. AST's testing followed a recent April test by the same company, where it was able to route an audio call between a Samsung Galaxy S22 in Texas to an iPhone in Japan via satellite.

The BW3 is a massive commercial communication array at 693 square feet -- about the size of a two- or three-car garage -- and the largest ever deployed in low Earth orbit, says AST's release. It operates using the same 3GPP standard found in ground-based cell networks. The achievement is "an important step toward AST SpaceMobile's goal of bringing broadband services to parts of the world where cellular coverage is either unreliable or simply does not exist today," according to AST's chairman and CEO, Abel Avellan, who said this would allow users to text and call, browse the internet, download files, and even stream video using a signal beamed from space.

An anonymous reader shares a report: The world of Secret Invasion is decidedly sketchy. With thousands of shapeshifting Skrulls on Earth, you can't trust what you think you're seeing. One second, you're looking at Nick Fury or an esteemed world leader; the next, you see their face morph into something (or someone) else entirely. This is a description of the plot of the new Marvel Cinematic Universe show on Disney Plus (as well as its comic book counterpart), which follows Nick Fury as he uncovers -- what else? -- a secret invasion by the Skrull population on Earth. But the concept of shape-shifting is also seen in the series' very different approach to its opening credits, which look like a sort of watercolor rendering of the key players and themes of Secret Invasion.

As we see a sort of jittery and ominous sequence of the Skrull green taking over more and more of the world, it looks a lot like if an AI was prompted with the concept of "Skrull cubism" -- which, actually, isn't that far off of what it is. As director and executive producer Ali Selim tells Polygon, the intro sequence was designed by Method Studios using artificial intelligence, something he thinks plays with the very themes of the show. "When we reached out to the AI vendors, that was part of it -- it just came right out of the shape-shifting, Skrull world identity, you know? Who did this? Who is this?" Selim says. Like many people, Selim says he doesn't "really understand" how the artificial intelligence works, but was fascinated with the ways in which the AI could translate the sense of foreboding he wanted for the series. "We would talk to them about ideas and themes and words, and then the computer would go off and do something. And then we could change it a little bit by using words, and it would change."

A new study argues that the James Webb Space Telescope (JWST) is capable of detecting the chemical signs of life in exoplanet atmospheres -- the best hope for finding life on another world. Phys.Org reports: The team simulated atmospheric conditions for five broad types of Earth-like worlds: an ocean world, a volcanically active world, a rocky world during the high bombardment period, a super-Earth, and a world like Earth when life arose. They assumed all these worlds had a surface pressure of less than five Earth atmospheres, and calculated the absorption spectra for several organically produced molecules such as methane, ammonia, and carbon monoxide. These molecules can also be formed by non-biological methods, but they form a good baseline as a proof of concept.

They found that with a reasonably thick atmosphere, the JWST, specifically its NIRSpec G395M/H instrument, could confirm the presence of these molecules within 10 transits of the planet. It would be easiest to do with super-Earths and other worlds with a thick atmosphere, but it is still possible for potentially habitable worlds. Given the number of transits needed, our best shot at detecting biosignatures with JWST would be the close-orbiting worlds of red dwarf stars, such as the Trappist-1 system, which has several potentially habitable Earth-sized planets. Given the overlap between biological and non-biological origins, JWST observations might not be enough to confirm the existence of life, but this study shows that we are very close to that ability.

An anonymous reader quotes a report from MIT Technology Review: If we're going to prevent the gravest dangers of global warming, experts agree, removing significant amounts of carbon dioxide from the atmosphere is essential. That's why, over the past few years, projects focused on growing seaweed to suck CO2 from the air and lock it in the sea have attracted attention -- and significant amounts of funding -- from the US government and private companies including Amazon. The problem: farming enough seaweed to meet climate-change goals may not be feasible after all.

A new study, published today in Nature Communications Earth & Environment, estimates that around a million square kilometers of ocean would need to be farmed in order to remove a billion tons of carbon dioxide from the atmosphere over the course of a year. It's not easy to come by that amount of space in places where seaweed grows easily, given all the competing uses along the coastlines, like shipping and fishing. To put that into context, between 2.5 and 13 billion tons of atmospheric carbon dioxide would need to be captured each year, in addition to dramatic reductions in greenhouse-gas emissions, to meet climate goals, according to the study's authors.

A variety of scientific models suggest we should be removing anything from 1.3 billion tons of carbon dioxide each year to 29 billion tons by 2050 in order to prevent global warming levels from rising past 1. 5C. An 2017 report from the UN estimated that we'd need to remove 10 billion tons annually to stop the planet from warming past 2C by the same date. "The industry is getting ahead of the science," says Isabella Arzeno-Soltero, a postdoctoral scholar at Stanford University, who worked on the project. "Our immediate goal was to see if, given optimal conditions, we can actually achieve the scales of carbon harvests that people are talking about. And the answer is no, not really." [...] Their findings suggest that cultivating enough seaweed to reach these targets is beyond the industry's current capacity, although meeting climate goals will require much more than reliance solely on seaweed.

An unprecedented marine heatwave off the coasts of the UK and Ireland is posing a significant threat to marine species, with sea temperatures several degrees above normal, breaking records for late spring and early summer. The Guardian reports: The Met Office said global sea surface temperatures in April and May reached an all-time high for those months, according to records dating to 1850, with June also on course to hit record heat levels. The US National Oceanic and Atmospheric Administration has categorized parts of the North Sea as being in a category four marine heatwave, which is considered "extreme," with areas off the coast of England up to 5C above what is usual. The Met Office says temperatures are likely to remain high because of the emerging El Nino weather phenomenon.

Daniela Schmidt, a professor of earth sciences at the University of Bristol, said: "The extreme and unprecedented temperatures show the power of the combination of human-induced warming and natural climate variability like El Nino. While marine heatwaves are found in warmer seas like the Mediterranean, such anomalous temperatures in this part of the north Atlantic are unheard of. They have been linked to less dust from the Sahara but also the North Atlantic climate variability, which will need further understanding to unravel. Heat, like on land, stresses marine organisms. In other parts of the world, we have seen several mass mortalities of marine plants and animals caused by ocean heatwave which have caused hundreds of millions of pounds of losses, in fisheries income, carbon storage, cultural values and habitat loss. As long as we are not dramatically cutting emissions, these heatwaves will continue to destroy our ecosystems. But as this is happening below the surface of the ocean, it will go unnoticed."

Dr Dan Smale from the Marine Biological Association has been working on marine heatwaves for more than a decade and was surprised by the temperatures. He said: "I always thought they would never be ecologically impactful in the cool waters around UK and Ireland but this is unprecedented and possibly devastating. Current temperatures are way too high but not yet lethal for majority of species, although stressful for many ... If it carries on through summer we could see mass mortality of kelp, seagrass, fish and oysters."

Piers Forster, a professor of climate physics at the University of Leeds, said: "Both Met Office and NOAA analyses of sea-surface temperature show temperatures are at their highest ever level -- and the average sea-surface temperature breached 21C for the first time in April. These high temperatures are mainly driven by unprecedented high rates of human-induced warming. Cleaning up sulphur from marine shipping fuels is probably adding to the greenhouse gas driven warming. The shift towards El Nino conditions is also adding to the heat. There is also evidence that there is less Saharan dust over the ocean this year. This normally reflects heat away from the ocean. So in all, oceans are being hit by a quadruple whammy -- it's a sign of things to come."

An anonymous reader shares a report: GPS is now a mainstay of daily life, helping us with navigation, tracking, mapping, and timing across a broad spectrum of applications. But it does have a few shortcomings, most notably not being able to pass through buildings, rocks, or water. That's why Japanese researchers have developed an alternative wireless navigation system that relies on cosmic rays, or muons, instead of radio waves, according to a new paper published in the journal iScience. The team has conducted its first successful test, and the system could one day be used by search and rescue teams, for example, to guide robots underwater or to help autonomous vehicles navigate underground.

"Cosmic-ray muons fall equally across the Earth and always travel at the same speed regardless of what matter they traverse, penetrating even kilometers of rock," said co-author Hiroyuki Tanaka of Muographix at the University of Tokyo in Japan. "Now, by using muons, we have developed a new kind of GPS, which we have called the muometric positioning system (muPS), which works underground, indoors and underwater."

Universe Today reports: The best hope for finding life on another world isn't listening for coded messages or traveling to distant stars, it's detecting the chemical signs of life in exoplanet atmospheres. This long hoped-for achievement is often thought to be beyond our current observatories, but a new study argues that the James Webb Space Telescope (JWST) could pull it off.

Most of the exoplanets we've discovered so far have been found by the transit method. This is where a planet passes in front of its star from our point of view. Even though we can't observe the planet directly, we can see the star's brightness dip by a fraction of a percent. As we watch stars over time, we can find a regular pattern of brightness dips, indicating the presence of a planet. The star dips in brightness because the planet blocks some of the starlight. But if the planet also has an atmosphere, there is a small amount of light that will pass through the atmosphere before reaching us. Depending on the chemical composition of the atmosphere, certain wavelengths will be absorbed, forming absorption spectra within the spectra of the starlight.

We have long been able to identify atoms and molecules by their absorption and emission spectra, so in principle, we can determine a planet's atmospheric composition with the transit method... We have done this with a few exoplanets, such as detecting the presence of water and organic compounds, but these were done for large gas planets with thick atmospheres. We haven't been able to do this with rocky Earth-like worlds. Our telescopes just aren't sensitive enough for that.

But this new study shows that the JWST could detect certain chemical biosignatures depending on their abundance in the atmosphere.
Long-time Slashdot reader Baron_Yam writes that "The signature I like to imagine detecting is actually industrial pollution. Chemicals that aren't created by any known geological process and indicate not just life, but life smart enough to have advanced technology (but stupid enough to pollute their own air supply)."

An anonymous reader quotes this report from the Washington Post: In a new study released in Nature this week, researchers state that Earth formed within just 3 million years. That's notably faster than previous estimates placing the timeline up to 100 million years.... "We can also predict that if other planets formed ... by the same mechanism, then the ingredients required for life such as water, should be present on other planets and other systems, so there's a greater chance that we have water worlds elsewhere in the galaxy," said Isaac Onyett, lead author of the study and Ph.D. candidate at the University of Copenhagen.

The authors assert that this rapid genesis occurred through a theory called pebble accretion. The general idea, according to co-author and cosmochemist Martin Bizzarro, is that planets are born in a disk of dust and gas. When they reach a certain size, they rapidly attract those pebbles like a vacuum cleaner. Some of those pebbles are icy and could provide a water supply to Earth, thought of as pebble snow. This would have led to an early version of our planet, known as proto-Earth, that is approximately half the size of our present-day planet. (Our current rendition of Earth likely formed after a larger impact about 100 million years later, which also led to the formation of our moon....)

The team determined the time scale of Earth's formation by looking at silicon isotopes from more than 60 meteorites and planetary bodies in the vicinity of Earth, which represent the rubble leftover after planet formation... By analyzing the silicon compositions in samples of different ages, Onyett said they can piece together a time sequence of what was happening in the disk of dust before Earth formed. They found that, as the samples increased in age, the composition of the asteroids changed toward the composition of the cosmic dust that was being accumulated by Earth. "That's very strong evidence that this dust was also being swept up as it was drifting inwards towards the Sun," said Onyett. "It would have been swept up by Earth as it was growing by accretion."

Birger Schmitz, an astrogeologist at Lund University who was not involved in the research, said these results are "very compelling" and could shift how we think about our planet's formation... Most importantly, he said the results show there is nothing special about our water-carrying planet. "It is just a very ordinary planet in our galaxy. This is important in our attempts to understand how common higher forms of life are in the universe."
While scientists agree pebble accretion does explain the formation of gas-giant planets like Jupiter and Saturn, some still argue that rocky planets like Earth were instead formed through larger and larger asteroid collisions...

"California startup Varda Space Industries launched its first test mission on June 12," reports CNN, "successfully sending a 200-pound (90-kilogram) capsule designed to carry drug research into Earth's orbit.

"The experiment, conducted in microgravity by simple onboard machines, aims to test whether it would be possible to manufacture pharmaceuticals in space remotely." Research has already established that protein crystals grown in a weightless environment can result in more perfect structures compared with those grown on Earth. These space-formed crystals could potentially then be used to create better-performing drugs that the human body can more easily absorb.
"Its research, company officials hope, could lead to better, more effective drugs — and hefty profits," CNN reported earlier this week: "It's not as sexy a human-interest story as tourism when it comes to commercialization of the cosmos," said Will Bruey, Varda's CEO and cofounder. "But the bet that we're making at Varda is that manufacturing is actually the next big industry that gets commercialized." Varda launched its first test mission Monday aboard a SpaceX rocket, which took off from Vandenberg Space Force Base in California just after 2:30 pm PT. The company then confirmed in a tweet that its satellite successfully separated from the rocket...

If successful, Varda hopes to scale its business rapidly, sending regular flights of satellites into orbit stuffed with experiments on behalf of pharmaceutical companies. Eventually, the firm hopes that research will yield a golden ticket drug, one that proves to be better when manufactured in space and can return royalties to Varda for years to come... Founded less than three years ago, Varda has gone from an idea to a company with more than $100 million in seed funding and grants, a 68,000-square-foot factory, and a satellite in space. Its workforce has grown to nearly 100 employees...

One day, the company hopes Varda flights will be so common that its capsules will blaze across the night sky every evening, like shooting stars to those on the ground who catch a glimpse. From there, Varda could even look to develop a research platform on a private space station, where pharma researchers could travel themselves.

Researchers at Stanford University found that among the pollutants emitted from gas stoves is benzene, which is linked to cancer. "Levels of benzene can reach higher than those found in secondhand tobacco smoke and the benzene pollution can spread throughout a home," reports NPR. From the report: Stanford scientists measured benzene from gas stoves in 87 California and Colorado homes in 2022 for the paper published in the journal Environmental Science and Technology. They found both natural gas and propane stoves "emitted detectable and repeatable levels of benzene that in some homes raised indoor benzene concentrations above well-established health benchmarks." The risks of benzene have long been known. The Centers for Disease Control and Prevention says the chemical is linked to leukemia and other blood cell cancers.

"Benzene forms in flames and other high-temperature environments, such as the flares found in oil fields and refineries. We now know that benzene also forms in the flames of gas stoves in our homes," said Rob Jackson in a statement. He's the study's senior author and a Stanford professor of earth sciences. With one burner on high or the oven at 350 degrees, the researchers found benzene levels in a house can be worse than average levels for second-hand tobacco smoke. And they found the toxin doesn't just stay in the kitchen, it can migrate to other places, such as bedrooms. "Good ventilation helps reduce pollutant concentrations, but we found that exhaust fans were often ineffective at eliminating benzene exposure," Jackson said. He says this is the first paper to analyze benzene emissions when a stove or oven is in use.

Researchers also tested whether cooking food - pan-frying salmon or bacon - emits benzene but found all the pollution came from the gas and not the food. That's important because the gas industry often deflects concern about pollution from its fuel, to breathing problems that can be triggered by cooking fumes. There are no studies out there that say cooking with gas will make someone sick. This is all about increasing risks for certain illnesses.

Researchers have discovered high concentrations of phosphorus in ice crystals emitted from Saturn's moon Enceladus, enhancing its potential to support life. The findings, based on data from NASA's Cassini spacecraft, suggest that Enceladus may possess the necessary elements for life. Reuters reports: The discovery was based on data collected by NASA's Cassini spacecraft, the first to orbit Saturn, during its 13-year landmark exploration of the gaseous giant planet, its rings and its moons from 2004 to 2017. The same team previously confirmed that Enceladus' ice grains contain a rich assortment of minerals and complex organic compounds, including the ingredients for amino acids, associated with life as scientists know it. But phosphorus, the least abundant of six chemical elements considered necessary to all living things -- the others are carbon, oxygen, hydrogen, nitrogen and sulphur -- was still missing from the equation until now.

"It's the first time this essential element has been discovered in an ocean beyond Earth," the study's lead author, Frank Postberg, a planetary scientist at the Free University in Berlin, said in a JPL press release. [...] One notable aspect of the latest Enceladus discovery was geochemical modeling by the study's co-authors in Europe and Japan showing that phosphorus exists in concentrations at least 100 times that of Earth's oceans, bound water-soluble forms of phosphate compounds. "This key ingredient could be abundant enough to potentially support life in Enceladus' ocean," said co-investigator Christopher Glein, a planetary scientist at Southwest Research Institute in San Antonio, Texas. "This is a stunning discovery for astrobiology." "Whether life could have originated in Enceladus' ocean remains an open question," Glein said.

According to global consulting leader McKinsey and Company, Generative AI could add "2.6 trillion to $4.4 trillion annually" to the global economy. That's almost the "economic equivalent of adding an entire new country the size and productivity of the United Kingdom to the Earth ($3.1 trillion GDP in 2021)," notes VentureBeat. From the report: The $2.6 trillion to $4.4 trillion economic impact figure marks a huge increase over McKinsey's previous estimates of the AI field's impact on the economy from 2017, up 15 to 40% from before. This upward revision is due to the incredibly fast embrace and potential use cases of GenAI tools by large and small enterprises. Furthermore, McKinsey finds "current generative AI and other technologies have the potential to automate work activities that absorb 60 to 70% of employees' time today." Does this mean massive job loss is inevitable? No, according to Alex Sukharevsky, senior partner and global leader of QuantumBlack, McKinsey's in-house AI division and report co-author. "You basically could make it significantly faster to perform these jobs and do so much more precisely than they are performed today," Sukharevsky told VentureBeat. What that translates to is an addition of "0.2 to 3.3 percentage points annually to productivity growth" to the entire global economy, he said.

However, as the report notes, "workers will need support in learning new skills, and some will change occupations. If worker transitions and other risks can be managed, generative AI could contribute substantively to economic growth and support a more sustainable, inclusive world." Also, the advent of accessible GenAI has pushed up McKinsey's previous estimates for workplace automation: "Half of today's work activities could be automated between 2030 and 2060, with a midpoint in 2045, or roughly a decade earlier than in our previous estimates."

Specifically, McKinsey's report found that four types of tasks -- customer operations, marketing and sales, software engineering and R&D -- were likely to account for 75% of the value add of GenAI in particular. "Examples include generative AI's ability to support interactions with customers, generate creative content for marketing and sales and draft computer code based on natural-language prompts, among many other tasks." [...] Overall, McKinsey views GenAI as a "technology catalyst," pushing industries further along toward automation journeys, but also freeing up the creative potential of employees. "I do believe that if anything, we are getting into the age of creativity and the age of creator," Sukharevsky said.