Bitcoin

Peter Todd In Hiding After Being 'Unmasked' As Bitcoin Creator Satoshi Nakamoto (wired.com) 77

An anonymous reader quotes a report from Wired: When Canadian developer Peter Todd found out that a new HBO documentary, Money Electric: The Bitcoin Mystery, was set to identify him as Satoshi Nakamoto, the creator of Bitcoin, he was mostly just pissed. "This was clearly going to be a circus," Todd told WIRED in an email. The identity of the person -- or people -- who created Bitcoin has been the subject of speculation since December 2010, when they disappeared from public view. The mystery has proved all the more irresistible for the trove of bitcoin Satoshi is widely believed to have controlled, suspected to be worth many billions of dollars today. When the documentary was released on October 8, Todd joined a long line of alleged Satoshis.

Documentary maker Cullen Hoback, who in a previous film claimed to have identified the individual behind QAnon, laid out his theory to Todd on camera. The confrontation would become the climactic scene of the documentary. But Todd nonetheless claims he didn't see it coming; he alleges he was left with the impression the film was about the history of Bitcoin, not the identity of its creator. Since the documentary aired, Todd has repeatedly and categorically denied that he created Bitcoin: "For the record, I am not Satoshi," he alleges. "I think Cullen made the Satoshi accusation for marketing. He needed a way to get attention for his film."

For his part, Hoback remains confident in his conclusions. The various denials and deflections from Todd, he claims, are part of a grand and layered misdirection. "While of course we can't outright say he is Satoshi, I think that we make a very strong case," says Hoback. Whatever the truth, Todd will now bear the burden of having been unmasked as Satoshi. He has gone into hiding. [...] Todd expects that "continued harassment by crazy people" will become the indefinite status quo. But he says the potential personal safety implications are his chief concern -- and the reason he has gone into hiding. "Obviously, falsely claiming that ordinary people of ordinary wealth are extraordinarily rich exposes them to threats like robbery and kidnapping," says Todd. "Not only is the question dumb, it's dangerous. Satoshi obviously didn't want to be found, for good reasons, and no one should help people trying to find Satoshi."
"I think the idea that it puts their life [at risk] is a little overblown," says Hoback. "This person is potentially on track to become the wealthiest on Earth."

"If countries are considering adopting this in their treasuries or making it legal tender, the idea that there's potentially this anonymous figure out there who controls one twentieth of the total supply of digital gold is pretty important."
Earth

Amazon Ditches Plastic Air Pillows 77

Amazon has reached its goal set earlier this year to completely get rid of plastic air pillows at its warehouses by the end of the year. "As of October 2024, we've removed all plastic air pillows from our delivery packaging used at our global fulfillment centers," the e-commerce giant said in an October 9th blog post. The Verge reports: It's a welcome change following years of pressure from environmental groups to stop plastic pollution flooding into oceans. The company is still working to reduce the use of single-use plastics more broadly in its packaging. The most prolific type of plastic litter near coastlines is plastic film -- a material that makes up those once ubiquitous air pillows, according to Oceana. That film also happens to be the "deadliest" type of plastic pollution for large mammals like whales and dolphins that might ingest it, Oceana says.

The company swapped out plastic air pillows and single-use delivery bags for paper and cardboard alternatives in Europe in 2022. It also ditched plastic film packaging at its facilities in India in 2020. The US is Amazon's largest market, and the company hasn't managed to fully eliminate plastic packaging in North America just yet. It says it plans to reduce the amount of deliveries containing "Amazon-added plastic delivery packaging" in North America to just one-third of shipments by December, down from two-thirds in December 2023.
Sci-Fi

Special VHS Release for 'Alien: Romulus' Announced by 20th Century Studios (comicbook.com) 130

An anonymous reader shared this report from ComicBook.com: On Saturday, 20th Century Studios announced that the latest entry in the Alien sci-fi horror franchise will get a limited-edition VHS release on December 3 — just in time for the holidays.

The VHS release of Alien: Romulus is the first such release from a major studio since 2006... a major win for fans of physical media. In recent months, there has been a great bit of conversation surrounding the so-called death of physical media with the rise of digital and streaming with some retailers even having previously announced that they have or will be stopping sales of physical media. But with streaming platforms removing content for various reasons, there's been a rise in appreciation for physical media which has, in turn, resulted in increased sales, particularly when it comes to limited edition items such as Steelbooks [collectible steel-case disc releases]... Given that the Alien: Romulus VHS release is part of an overall celebration of the franchise for its 45th anniversary year, leaning into that nostalgia for feels pretty spot on.

The release will present the movie "in a 4:3 aspect ratio," writes the Verge, "hopefully with well-done pan-and-scan..." (Their post includes a promotional picture showing the "slick, vintage-style" box-cover art.)

"The tape has only the film," notes Gizmodo, "and no special featurette attached at the end, like some used to back in the day."

Gizmodo also reminds readers of Hulu's 2025 series Alien: Earth and an upcoming videogame sequel to 2014's Alien: Isolation.
NASA

NASA's Artemis Mission To Moon Unveils New Spacesuit Designed By Prada (spacenews.com) 51

For the first time in 50 years, humans will walk on the moon again. Currently planned for as soon as 2026, the Artemis III mission "will be one of the most complex undertakings of engineering and human ingenuity in the history of deep space exploration..." writes NASA. "Two crew members will descend to the surface and spend approximately a week near the South Pole of the Moon conducting new science before returning to lunar orbit..."

And they'll be wearing Prada, according to a Space News report from Milan: At a briefing at the International Astronautical Congress here October 16, Axiom and Prada revealed details about the Axiom Extravehicular Mobility Unit (AxEMU) suit that Axiom is creating for use by NASA on lunar landing missions starting with Artemis 3... Axiom emphasized the advanced capabilities in the suit, particularly when compared to the suits worn by the Apollo astronauts on moonwalks more than a half-century ago [including greater redundancy and healthy monitoring systems not available in Apollo-era suits]...

The unveiling came just over a year after Axiom announced it was working with luxury goods company Prada, an unconventional partnership intended to leverage Prada's expertise in materials and design... [Axiom's executive VP of extravehicular activity Russell Ralston] said Axiom has leveraged Prada's expertise in fabrics and garment design in helping create the outer layer of the suit, which reflects sunlight and keeps dust from getting into interior layers... "If you look across all the different technologies that are needed within the suit, the uniqueness of those technologies and their application, the supply chain has tended to be pretty unstable," he said. "So, one of the things that Prada has really helped us with is bringing stability to that base, especially on the fabric side...."

Not surprisingly, Prada also contributed to the appearance of the suit. "One of the things that was important to us was the appeal of the suit, the look of the suit," Ralston said. "Something that Prada brought to the table was helping with the general aesthetic of the suit." One design aspect that brought the two companies together was a prominent red stripe on the suit. Ralston noted that was a nod to a NASA tradition where the mission commander's suit would have that red stripe to distinguish them from another spacewalker...

While the current focus of the suit is for walking on the moon, Ralston said the suit can be easily adapted for applications in low Earth orbit, such as spacewalks from the International Space Station or Axiom's future commercial space station.

The article adds that 30 people worked on the suit (full- or part-time). "These suits will give the astronauts increased range of motion and flexibility to explore more of the landscape than on previous lunar missions," according to NASA.

With "the ability to send high quality images and video to the ground with advanced communication technology, they will be sharing a unique new human experience with the world."

Thanks to long-time Slashdot reader schwit1 for sharing the news.
United States

Could Geothermal Power Revolutionize US Energy Consumption? (msn.com) 95

That massive geothermal energy project in Utah gets a closer look from the Washington Post, which calls it "a significant advance for a climate-friendly technology that is gaining momentum in the United States." Once fully operational, the project could generate up to 2 gigawatts of electricity — enough to power more than 2 million homes. In addition, the BLM proposed Thursday to speed up the permitting process for geothermal projects on public lands across the country. Earlier this month, the agency also hosted the biggest lease sale for geothermal developers in more than 15 years...

White House national climate adviser Ali Zaidi said in an interview Thursday, "Enhanced geothermal technology has the opportunity to deliver something in the range of 65 million homes' worth of clean power — power that can be generated without putting any pollution in the sky. So we see it as a really meaningful contributor to our technology tool kit...."

The developments Thursday come as tech companies race to find new sources of zero-emission power for data centers that can use as much energy as entire cities. With major backing from Google parent Alphabet, Fervo recently got its first project up and running in the northern Nevada desert... The advanced geothermal technology that Fervo is trying to scale up is an attractive option for tech firms. Enhanced geothermal plants do not pose all the safety concerns that come with nuclear power, but they have the potential to provide the round-the-clock energy that data centers need. The challenge Fervo faces is whether it can bring this technology online quickly enough.

Fervo (a seven-year-old start-up) was co-founded by Tim Latimer, who previously worked as a drilling engineer, according to the article. But "Early in my career I got passionate about climate change. I started looking at where could a drilling engineer from the oil and gas industry make a difference," Latimer said during a Washington Post Live event in September. "And I realized that geothermal had been so overlooked ... even though the primary technical challenge to making geothermal work is dropping drilling costs."
Power

Electric Motors Are About to Get a Major Upgrade - Thanks to Benjamin Franklin (msn.com) 70

"A technology pioneered by Benjamin Franklin is being revived to build more efficient electric motors," reports the Wall Street Journal, "an effort in its nascent stage that has the potential to be massive." A handful of scientists and engineers — armed with materials and techniques unimaginable in the 1700s — are creating modern versions of Franklin's "electrostatic motor," that are on the cusp of commercialization... Franklin's "electrostatic motor" uses alternating positive and negative charges — the same kind that make your socks stick together after they come out of the dryer — to spin an axle, and doesn't rely on a flow of current like conventional electric motors. Every few years, an eager Ph.D. student or engineer rediscovers this historical curiosity. But other than applications in tiny pumps and actuators etched on microchips, where this technology has been in use for decades, their work hasn't made it out of the lab.

Electrostatic motors have several potentially huge advantages over regular motors. They are up to 80% more efficient than conventional motors after all the dependencies of regular electric motors are added in. They could also allow new kinds of control and precision in robots, where they could function more like our muscles. And they don't use rare-earth elements because they don't have permanent magnets, and require as little as 5% as much copper as a conventional motor. Both materials have become increasingly scarce and expensive over the past decade, and supply chains for them are dominated by China.

"It's reminiscent of the early 1990s, when Sony began to produce and sell the first rechargeable lithium-ion batteries, a breakthrough that's now ubiquitous..." according to the article. "These motors could lead to more efficient air-conditioning systems, factories, logistics hubs and data centers, and — since they can double as generators — better ways of generating renewable energy. They might even show up in tiny surveillance drones."

And the article points out that C-Motive Technologies, a 16-person startup in Wisconsin, is already "reaching out to companies, hoping to get their motors out into the real world." ("So far, FedEx and Rockwell Automation, the century-old supplier of automation to factories, are among those testing their motors.") C-Motive's founders discovered that a number of technologies had matured enough that, when combined, could yield electrostatic motors competitive with conventional ones. These enabling technologies include super fast-switching power electronics — like those in modern electric vehicles — that can toggle elements of the motor between states of positive and negative charge very quickly... Dogged exploration of combinations of various readily available industrial organic fluids led to a proprietary mix that can both multiply the strength of the electric field and insulate the motor's spinning parts from each other — all without adding too much friction — says C-Motive Chief Executive Matt Maroon.
NASA

'NASA's $100 Billion Moon Mission Is Going Nowhere' (bloomberg.com) 94

Longtime Slashdot reader schwit1 shares an op-ed written by Michael R. Bloomberg, founder and majority owner of Bloomberg LP, the parent company of Bloomberg News, UN Special Envoy on Climate Ambition and Solutions, and chair of the Defense Innovation Board: There are government boondoggles, and then there's NASA's Artemis program. More than a half century after Neil Armstrong's giant leap for mankind, Artemis was intended to land astronauts back on the moon. It has so far spent nearly $100 billion without anyone getting off the ground, yet its complexity and outrageous waste are still spiraling upward. The next US president should rethink the program in its entirety. As someone who greatly respects science and strongly supports space exploration, the more I have learned about Artemis, the more it has become apparent that it is a colossal waste of taxpayer money. [...]

A celestial irony is that none of this is necessary. A reusable SpaceX Starship will very likely be able to carry cargo and robots directly to the moon -- no SLS, Orion, Gateway, Block 1B or ML-2 required -- at a small fraction of the cost. Its successful landing of the Starship booster was a breakthrough that demonstrated how far beyond NASA it is moving. Meanwhile, NASA is canceling or postponing promising scientific programs -- including the Veritas mission to Venus; the Viper lunar rover; and the NEO Surveyor telescope, intended to scan the solar system for hazardous asteroids -- as Artemis consumes ever more of its budget. Taxpayers and Congress should be asking: What on Earth are we doing? And the next president should be held accountable for answers.

Earth

Diamond Dust Could Cool the Planet At a Cost of Mere Trillions (science.org) 98

sciencehabit shares a report from Science Magazine: From dumping iron into the ocean to launching mirrors into space, proposals to cool the planet through 'geoengineering' tend to be controversial -- and sometimes fantastical. A new idea isn't any less far-out, but it may avoid some of the usual pitfalls of strategies to fill the atmosphere with tiny, reflective particles. In a modeling study published this month in Geophysical Research Letters, scientists report that shooting 5 million tons of diamond dust into the stratosphere each year could cool the planet by 1.6C -- enough to stave off the worst consequences of global warming. The scheme wouldn't be cheap, however: experts estimate it would cost nearly $200 trillion over the remainder of this century -- far more than traditional proposals to use sulfur particles. [...]

The researchers modeled the effects of seven compounds, including sulfur dioxide, as well as particles of diamond, aluminum, and calcite, the primary ingredient in limestone. They evaluated the effects of each particle across 45 years in the model, where each trial took more than a week in real-time on a supercomputer. The results showed diamond particles were best at reflecting radiation while also staying aloft and avoiding clumping. Diamond is also thought to be chemically inert, meaning it would not react to form acid rain, like sulfur. To achieve 1.6C of cooling, 5 million tons of diamond particles would need to be injected into the stratosphere each year. Such a large quantity would require a huge ramp up in synthetic diamond production before high-altitude aircraft could sprinkle the ground-up gems across the stratosphere. At roughly $500,000 per ton, synthetic diamond dust would be 2,400 times more expensive than sulfur and cost $175 trillion if deployed from 2035 to 2100, one study estimates.

Space

SpaceX Secures New Contracts Worth $733.5 Million For National Security Space Missions (spacenews.com) 39

An anonymous reader quotes a report from Space News: SpaceX has been awarded contracts for eight launches under the National Security Space Launch (NSSL) Phase 3 Lane 1 program, the U.S. Space Force's Space Systems Command announced Oct. 18. The contracts worth $733.5 million span seven missions for the Space Development Agency (SDA) and one for the National Reconnaissance Office (NRO) projected to launch in 2026. These are part of the NSSL Phase 3 procurement of launch services for U.S. defense and intelligence agencies.

The NSSL Phase 3 Lane 1 program is structured as an Indefinite Delivery, Indefinite Quantity (IDIQ) contract, a flexible procurement method often used in government contracting. The total value of the Lane 1 contract is estimated at $5.6 billion over five years, with Blue Origin, SpaceX, and United Launch Alliance (ULA) selected as the primary vendors to compete for individual task orders. The Space Development Agency is utilizing SpaceX's Falcon 9 rocket to launch small satellites into a low-Earth orbit (LEO) constellation, a network of satellites designed to enhance military communications and intelligence capabilities. SpaceX has already completed two successful launches for the Tranche 0 portion of SDA's constellation.

"The Phase 3 Lane 1 construct allows us to execute launch services more quickly for risk-tolerant payloads, putting more capabilities in orbit faster to support national security," said Brig. Gen. Kristin Panzenhagen, program executive officer for Assured Access to Space at the Space Force. Blue Origin's New Glenn rocket has yet to perform its first launch and will need to complete at least two successful flights to qualify for NSSL certification, while ULA's Vulcan Centaur, which has completed two flights, is still awaiting final certification for the program.

Earth

Global Water Crisis Leaves Half of World Food Production at Risk in Next 25 Years (theguardian.com) 197

More than half the world's food production will be at risk of failure within the next 25 years as a rapidly accelerating water crisis grips the planet, unless urgent action is taken to conserve water resources and end the destruction of the ecosystems on which our fresh water depends, experts have warned in a landmark review. From a report: Half the world's population already faces water scarcity, and that number is set to rise as the climate crisis worsens, according to a report from the Global Commission on the Economics of Water published on Thursday.

Demand for fresh water will outstrip supply by 40% by the end of the decade, because the world's water systems are being put under "unprecedented stress," the report found. The commission found that governments and experts have vastly underestimated the amount of water needed for people to have decent lives. While 50 to 100 litres a day are required for each person's health and hygiene, in fact people require about 4,000 litres a day in order to have adequate nutrition and a dignified life. For most regions, that volume cannot be achieved locally, so people are dependent on trade -- in food, clothing and consumer goods -- to meet their needs.

Some countries benefit more than others from "green water," which is soil moisture that is necessary for food production, as opposed to "blue water" from rivers and lakes. The report found that water moves around the world in "atmospheric rivers" which transport moisture from one region to another.

Earth

Sustainable Building Effort Reaches New Heights With Wooden Skyscrapers (knowablemagazine.org) 128

The University of Toronto is constructing a 14-story building using mass timber, one of the largest and most recent projects to employ this innovative building technology. "Mass timber is an appealing alternative to energy-intensive concrete and steel, which together account for almost 15 percent of global carbon dioxide emissions," reports Knowable Magazine. "Though experts are still debating mass timber's role in fighting climate change, many are betting it's better for the environment than current approaches to construction. It relies on wood, after all, a renewable resource." From the report: Today, the tallest mass timber building is the 25-story Ascent skyscraper in Milwaukee, completed in 2022. As of that year, there were 84 mass timber buildings eight stories or higher either built or under construction worldwide, with another 55 proposed. Seventy percent of the existing and future buildings were in Europe, about 20 percent in North America and the rest in Australia and Asia, according to a report (PDF) from the Council on Tall Buildings and Urban Habitat. When you include smaller buildings, at least 1,700 mass timber buildings had been constructed in the United States alone as of 2023. [...]

In principle, mass timber is like plywood but on a much larger scale: The smaller pieces are layered and glued together under pressure in large specialized presses. Today, beams up to 50 meters long, usually made of what's called glue-laminated timber, or glulam, can replace steel elements. Panels up to 50 centimeters thick, typically cross-laminated timber, or CLT, replace concrete for walls and floors. These wood composites can be surprisingly strong -- stronger than steel by weight. But a mass timber element must be bulkier to achieve that same strength. As a building gets higher, the wooden supports must get thicker; at some point, they simply take up too much space. So for taller mass timber buildings, including the Ascent skyscraper, architects often turn to a combination of wood, steel and concrete.

Power

Petroleum Drilling Technology Is Now Making Carbon-Free Power (npr.org) 69

An anonymous reader quotes a report from NPR: There's a valley in rural southwest Utah that's become a hub for renewable energy. Dozens of tall white wind turbines whoosh up in the sky. A sea of solar panels glistens in the distance. But the new kid on the block is mostly hidden underground. From the surface, Fervo Energy's Cape Station looks more or less like an oil derrick, with a thin metal tower rising above the sagebrush steppe. But this $2 billion geothermal project, which broke ground last year, is not drilling for gas. It's drilling for underground heat that CEO Tim Latimer believes holds the key to generating carbon-free power -- lots of it.

"Just these three well pads alone will produce 100 megawatts of electricity. Around-the-clock, 24/7 electricity," he said. Latimer stood overlooking the project, which is currently under construction, on one of the drill rig's metal platforms 40 feet off the ground. This well is one of the 24 Fervo is in the process of completing at Cape Station to harness the Earth's natural heat and generate electricity. This isn't the type of geothermal that's already active in volcanic hot spots like Iceland or The Geysers project in California. It's called an enhanced geothermal system. Cold water goes down into a well that curves like a hockey stick as it reaches more than 13,000 feet underground. Then the water squeezes through cracks in 400-degree rock. The water heats up and returns to the surface through a second well that runs parallel to the first. That creates steam that turns turbines to produce electricity, and the water gets sent back underground in a closed loop.

This horizontal well technique has been pioneered at a $300 million federal research project called Utah FORGE located in this same valley, which has paved the way for private companies to take the tech and run with it. Recent innovations like better drill bits -- made with synthetic diamonds to eat through hard subterranean granite -- have helped Fervo drill its latest well in a quarter of the time that it took just a couple of years ago. That efficiency has meant an 80% drop in drilling costs, Latimer said. Last year, Fervo's pilot project in Nevada used similar techniques to begin sending electricity to a Google data center. And the company's early tests at Cape Station in Utah show the new project can produce power at triple the rate of its Nevada pilot. "This is now a proven tech. That's not a statement you could have made two or three years ago," Latimer said. "Now, it just comes down to how do we get more of these megawatts on the grid so we have a bigger impact?"
The report notes that Fervo signed a landmark deal with Southern California Edison, one of the country's largest electric utilities with 15 million customers. "It will send the first 70 megawatts of geothermal juice to the grid in 2026," reports NPR. "By the time the project is fully completed in 2028, this Utah plant will deliver 320 megawatts total -- enough to power 350,000 homes. The project's full output will be 400 megawatts."
Earth

Cost of Dealing With PFAS Problem Sites 'Frightening', Says Environment Agency (theguardian.com) 30

The number of sites identified as potentially having been polluted with banned cancer-causing "forever chemicals" in England is on the rise, and the Environment Agency (EA) says it does not have the budget to deal with them. From a report: A former RAF airfield in Cambridgeshire and a fire service college in the Cotswolds have joined a chemicals plant in Lancashire and a fire protection equipment supplier in North Yorkshire on the agency's list of "problem sites" for per- and polyfluoroalkyl substances (PFAS). In total, according to a report compiled for the agency, there could be more than 10,000 locations in England contaminated with PFAS -- substances that have been linked to a wide range of diseases including cancers, and which do not break down in the environment, earning them the nickname "forever chemicals." But to date the agency is only taking action on four sites.

[...] In an email sent to Defra in May, the agency says there are "funding pressures this year to take on all the inspection work we have been asked to do" relating to "PFAS and the two new potential site inspection requests we have accepted for AGC and Duxford." "These are the first requests we have had for many years and the very high cost of analysing for PFAS is beginning to get frightening,â the agency wrote. The "ballpark estimate of costs to carry out ... investigations on four PFAS problem sites ... has just come out at between $2.3m-$3.5m. We aren't planning to spend anything like [that], certainly not immediately but it does put the total value of our contaminated land budget of $392k plus $262k from [the chemicals funding stream] into context."

Earth

Trees and Land Absorbed Almost No CO2 Last Year 184

The Earth's natural carbon sinks -- oceans, forests, and soils -- are increasingly struggling to absorb human carbon emissions as global temperatures rise, raising concerns that achieving net-zero targets may become impossible. "In 2023, the hottest year ever recorded, preliminary findings by an international team of researchers show the amount of carbon absorbed by land has temporarily collapsed," reports The Guardian. "The final result was that forest, plants and soil -- as a net category -- absorbed almost no carbon." The Guardian reports: The 2023 breakdown of the land carbon sink could be temporary: without the pressures of drought or wildfires, land would return to absorbing carbon again. But it demonstrates the fragility of these ecosystems, with massive implications for the climate crisis. Reaching net zero is impossible without nature. In the absence of technology that can remove atmospheric carbon on a large scale, the Earth's vast forests, grasslands, peat bogs and oceans are the only option for absorbing human carbon pollution, which reached a record 37.4bn tonnes in 2023.

At least 118 countries are relying on the land to meet national climate targets. But rising temperatures, increased extreme weather and droughts are pushing the ecosystems into uncharted territory. The kind of rapid land sink collapse seen in 2023 has not been factored into most climate models. If it continues, it raises the prospect of rapid global heating beyond what those models have predicted.
"We're seeing cracks in the resilience of the Earth's systems. We're seeing massive cracks on land -- terrestrial ecosystems are losing their carbon store and carbon uptake capacity, but the oceans are also showing signs of instability," Johan Rockstrom, director of the Potsdam Institute for Climate Impact Research, told an event at New York Climate Week in September.

"Nature has so far balanced our abuse. This is coming to an end."
Space

NASA Launches Europa Clipper To Probe Jupiter's Icy Moon for Signs of Life 70

NASA's Europa Clipper mission lifted off successfully on Monday, marking the agency's first mission to Jupiter in over a decade. The $5.2 billion spacecraft aims to investigate whether Europa, Jupiter's fourth-largest moon, could harbor conditions suitable for life. A SpaceX Falcon Heavy rocket launched from NASA's Kennedy Space Center in Florida at 12:06 p.m. Eastern time, lifting the Europa Clipper spacecraft into orbit around Earth.

Europa Clipper, NASA's largest-ever interplanetary craft, weighs 12,500 pounds and boasts solar panels spanning 100 feet. Its nine scientific instruments will study Europa's surface and interior in unprecedented detail. After a 1.8 billion-mile journey, the spacecraft will reach Jupiter in April 2030. It will then conduct 49 flybys of Europa over four years, coming within 16 miles of the moon's surface.

Scientists believe Europa's subsurface ocean could contain twice as much water as Earth's oceans. The mission will measure ocean depth, analyze surface compounds, and map Europa's magnetic field to gather clues about its internal composition. Instruments will search for warm spots indicating thin ice, potential cryovolcanoes, and plumes of water vapor. The spacecraft will also attempt to identify carbon-based molecules that could serve as building blocks for life. "Europa is certainly the most likely place for life beyond Earth in our solar system," Robert Pappalardo, Europa Clipper project scientist, told the New York Times.
Power

Solar Power Brought by Volunteers to Hurricane Helene's Disaster Zone (apnews.com) 74

Bobby Renfro spent $1,200 to buy a gas-powered electricity generator for a community resource hub he set up in a former church near hurricane-struck Asheville, North Carolina. He's spending thousands more on fuel, reports the Associated Press — though he's just one of many. Right now over 500,000 people are without power in Florida, according to the PowerOutage.us project — with more than 9,000 in Georgia, and over 17,000 in North Carolina" Without it, they can't keep medicines cold or power medical equipment or pump well water. They can't recharge their phones or apply for federal disaster aid... Residents who can get their hands on gas and diesel-powered generators are depending on them, but that is not easy. Fuel is expensive and can be a long drive away. Generator fumes pollute and can be deadly. Small home generators are designed to run for hours or days, not weeks and months.

Now, more help is arriving. Renfro received a new power source this week, one that will be cleaner, quieter and free to operate. Volunteers with the nonprofit Footprint Project and a local solar installation company delivered a solar generator with six 245-watt solar panels, a 24-volt battery and an AC power inverter. The panels now rest on a grassy hill outside the community building. Renfro hopes his community can draw some comfort and security, "seeing and knowing that they have a little electricity." The Footprint Project is scaling up its response to this disaster with sustainable mobile infrastructure. It has deployed dozens of larger solar microgrids, solar generators and machines that can pull water from the air to 33 sites so far, along with dozens of smaller portable batteries.

With donations from solar equipment and installation companies as well as equipment purchased through donated funds, the nonprofit is sourcing hundreds more small batteries and dozens of other larger systems and even industrial-scale solar generators known as "Dragon Wings."

United Kingdom

Can the UK Increase Green Energy with 'Zonal Energy Pricing'? (theguardian.com) 63

To avoid overloading local electric grids, Britain's most productive windfarm "is paid to turn off," reports the Guardian — and across the industry these so-called "constraint payments" amount to billions every year.

"Government officials are hoping to correct the clear inefficiencies in the market by overhauling the market itself." Greg Jackson, the founder of Octopus Energy, told the Guardian: "It's grotesque that energy costs are rising again this winter, whilst we literally pay windfarms these extortionate prices not to generate. Locational pricing would instead mean that local people got cheap power when it's windy. Scotland would have the cheapest power in Europe, instead of among the most expensive, and every region would be cheaper than today. Companies would invest in infrastructure where we need it — not where they get the highest subsidies."

The changes could catalyse an economic osmosis of high energy users — such as datacentres and factories — into areas of the country with low energy prices, creating new job opportunities beyond the south-east. It could also spur the development of new energy projects — particularly rooftop solar — across buildings in urban areas where energy demand is high. This rebalancing of the energy market could save the UK nearly £49bn in accumulated network costs by 2040, according to a study commissioned by the energy regulator from FTI Consulting.

But others fear the changes could come at a deeper cost to Britain's climate goals — and bill payers too. The clean energy companies preparing to spend billions on building new wind and solar farms are concerned that a redrawing of the market boundaries could radically change the economics of new renewable energy projects — which would ultimately raise the costs, which would be passed on to consumers, or see the projects scrapped altogether... With stiff competition in the international markets for investment in clean energy, Renewable UK [the industry's trade group] fears that companies and their investors will simply choose to build new clean energy projects elsewhere.

"The debate has driven deep rifts across the industry," the article concludes, "between modernisers who believe the new price signals would give rise to a new, rational market and those who fear the changes risk unravelling Britain's low-carbon agenda...

"The government is expected to make a decision on how to proceed in the coming months, but the fierce debate between warring factions of the energy industry is likely to continue for far longer."

Thanks to long-time Slashdot reader AmiMoJo for sharing the news.
Earth

Zambia Faces a Climate-Induced Energy Crisis (apnews.com) 103

Zambia has the largest man-made lake in the world, reports the Associated Press — but a severe drought has left the lake's 128-meter-high (420-feet) dam wall "almost completely exposed". This leaves Kariba dam without enough water to run most of its hydroelectric turbines — meaning millions of people in Zambia now face "a climate-induced energy crisis..." The water level is so low that only one of the six turbines on Zambia's side of the dam is able to operate, cutting generation to less than 10% of normal output. Zambia relies on the dam for more than 80% of its national electricity supply, and the result is Zambians have barely a few hours of power a day at the best of times. Often, areas are going without electricity for days... The power crisis is a bigger blow to the economy and the battle against poverty than the lockdowns during the COVID-19 pandemic, said Zambia Association of Manufacturers president Ashu Sagar.

Africa contributes the least to global warming but is the most vulnerable continent to extreme weather events and climate change as poor countries can't meet the high financials costs of adapting. This year's drought in southern Africa is the worst in decades and has parched crops and left millions hungry, causing Zambia and others to already declare national disasters and ask for aid...

Zambia is not alone in that hydroelectric power makes up over 80% of the energy mix in Mozambique, Malawi, Uganda, Ethiopia and Congo, even as experts warn it will become more unreliable. "Extreme weather patterns, including prolonged droughts, make it clear that overreliance on hydro is no longer sustainable," said Carlos Lopes, a professor at the Mandela School of Public Governance at the University of Cape Town in South Africa.

While the lake's water level normally rises six meters after it rains, "It moved by less than 30 centimeters after the last rainy season barely materialized, authorities said...

"Experts say there's also no guarantee those rains will come and it's dangerous to rely on a changing climate given Zambia has had drought-induced power problems before, and the trend is they are getting worse."
Space

SpaceX's Starship Completes Fifth Test Flight - and Lands Booster Back at Launch Tower (cnbc.com) 203

Early this morning SpaceX successfully launched its Starship rocket on its fifth test flight. But more importantly, CNBC points out, SpaceX "made a dramatic first catch of the rocket's more than 20-story tall booster."

Watch the footage here. It's pretty exciting... The achievement marks a major milestone toward SpaceX's goal of making Starship a fully reusable rocket system... The rocket's "Super Heavy" booster returned to land on the arms of the company's launch tower nearly seven minutes after launch.

"Are you kidding me?" SpaceX communications manager Dan Huot said on the company's webcast. "What we just saw, that looked like magic," Huot added...

Starship separated and continued on to space, traveling halfway around the Earth before reentering the atmosphere and splashing down in the Indian Ocean as intended to complete the test. There were no people on board the fifth Starship flight. The company's leadership has said SpaceX expects to fly hundreds of Starship missions before the rocket launches with any crew...

With the booster catch, SpaceX has surpassed the fourth test flight's milestones... The company sees the ambitious catch approach as critical to its goal of making the rocket fully reusable. "SpaceX engineers have spent years preparing and months testing for the booster catch attempt, with technicians pouring tens of thousands of hours into building the infrastructure to maximize our chances for success," the company wrote on its website.

Moon

NASA Confirms Plans To Develop Lunar Time Standard (nasa.gov) 29

NASA confirmed that it's working with international partners and standards organizations to create a Coordinated Lunar Time (LTC) for future lunar exploration. This time standard will account for relativity and be scalable for other celestial bodies, supporting long-term missions like Artemis and commercial space activities. From the report: The lunar time will be determined by a weighted average of atomic clocks at the Moon, similar to how scientists calculate Earth's globally recognized Coordinated Universal Time (UTC). Exactly where at the Moon is still to be determined, since current analysis indicates that atomic clocks placed at the Moon's surface will appear to 'tick' faster by microseconds per day. A microsecond is one millionth of a second. NASA and its partners are currently researching which mathematical models will be best for establishing a lunar time.

To put these numbers into perspective, a hummingbird's wings flap about 50 times per second. Each flap is about .02 seconds, or 20,000 microseconds. So, while 56 microseconds may seem miniscule, when discussing distances in space, tiny bits of time add up.
"For something traveling at the speed of light, 56 microseconds is enough time to travel the distance of approximately 168 football fields," said Cheryl Gramling, lead on lunar position, navigation, timing, and standards at NASA Headquarters in Washington. "If someone is orbiting the Moon, an observer on Earth who isn't compensating for the effects of relativity over a day would think that the orbiting astronaut is approximately 168 football fields away from where the astronaut really is."

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