July has been confirmed as the hottest month on record globally after several heatwaves in parts of Europe, according to the Copernicus Climate Change Service (C3S). From a report: The global average temperature was 16.95C last month, surpassing the previous record set in 2019 by a substantial 0.33C. Temperatures exceeded 40C last week in several countries across Europe including Greece, France, Italy and Spain. Wildfires forced the evacuation of thousands of residents and tourists from several Greek islands including Rhodes. There were also high temperatures in South American countries, despite it being winter there.

July is estimated to have been about 1.5C warmer than the average for 1850-1900, according to C3S, and 0.72C warmer than the 1991-2020 average. Dr Samantha Burgess, deputy director of C3S, said: "We just witnessed global air temperatures and global ocean surface temperatures set new all-time records in July. These records have dire consequences for both people and the planet exposed to ever more frequent and intense extreme events. Antarctic sea ice has also been at record lows this July, freezing less than in any other winter since satellites began observations in 1979. Further reading: Iran Declares 2-Day Public Holiday on Extreme Heat.

Floods, fires and heavy rains have landed more blows across Europe this week, with the authorities on the continent scrambling to respond to the extreme weather that has become increasingly common in the past few years. From a report: The most recent events have destroyed large amounts of land, left dozens of people injured, forced thousands to evacuate and, in some cases, caused deaths, and they come on the heels of scorching temperatures that have engulfed much of Southern Europe this summer. Climate change has made extreme heat a fixture of the warmer months in Europe, but experts say that the continent has failed to significantly adapt to the hotter conditions. Governments in many countries are now struggling to address the devastating effects.

"The extreme weather conditions across Europe continue to be of concern," Roberta Metsola, the president of the European Parliament, wrote on Twitter. "The EU is showing solidarity with all those in need." Heavy rains in recent days have led rivers to overflow across Slovenia in what the authorities there said was the worst natural disaster since the country's independence in 1991. At least six people have died, according to the Slovenian news agency STA, and thousands have been forced to flee their homes to escape the floods. Several countries have tried to help, with France and Germany sending equipment such as prefabricated bridges, and even Ukraine, in the middle of a war with Russia, promising to send a helicopter.

Long-time Slashdot reader William Robinson shares a report from the BBC: India's space agency has released the first images of the Moon taken by the Chandrayaan-3 spacecraft, which entered lunar orbit on Saturday. The images show craters on lunar surface getting larger and larger as the spacecraft draws closer. Chandrayaan-3's lander and rover are due to reach the surface on August 23. If successful, India will be the first country to perform a controlled "soft landing" near the south pole. It will also become only the fourth to achieve a soft landing on the Moon after the US, the former Soviet Union and China.

After the spacecraft orbited the Earth for about 10 days, it was sent into the translunar orbit last Tuesday and successfully injected into the lunar orbit on Saturday. Indian Space Research Agency (Isro) said that all checks showed that Chandrayaan-3 was in good "health." It has also pointed out that "this is the third time in succession that Isro has successfully injected a spacecraft into the lunar orbit." Scientists say Chandrayaan-3, the third in India's program of lunar exploration, is expected to build on the success of its earlier Moon missions.

An anonymous reader quotes a report from New Atlas: Scientists have discovered that the Sun produces higher energy light than was thought possible. An unusual type of telescope detected gamma rays with energies of over 1 tera electron volt (TeV), at least five times more energetic than previously known. The Sun emits light spanning a wide range of energies, from infrared through visible light and up to ultraviolet. It was previously predicted that the Sun could produce gamma rays -- electromagnetic radiation with the highest energy -- through interactions with cosmic rays from distant sources, but these would rarely reach Earth to be detectable. A few decades later, these gamma rays were eventually detected by NASA's Fermi Gamma-ray Space Telescope in 2011. With more and more observations over the years since, Fermi found that the Sun was producing around seven times more gamma rays than had been predicted. Their energies were detected at up to 200 giga electron volts (GeV), which is the upper limit that Fermi can pick up.

So for the new study, scientists used a different instrument that's sensitive beyond that limit. The instrument in question is called the High-Altitude Water Cherenkov Observatory (HAWC), and it works in a way unlike your everyday telescope. It's made up of a series of 300 big tanks filled with 200 tons of water each. When gamma rays hit molecules in the Earth's atmosphere, they create a cascade of lower energy particles, and these can interact with the water molecules in those big tanks. Sensitive instruments keep watch for these interactions, and scientists can work backwards to calculate the energy of the original gamma ray. Using HAWC data gathered between 2015 and 2021, the researchers discovered that the Sun was producing gamma rays with energies well beyond that which Fermi detected. They were reaching energies on the scale of TeV, with some spiking to almost 10 TeV. Exactly how the Sun produces them remains a mystery, the team says, but further research will investigate how their energy gets so high and what role the Sun's magnetic field might play. The research was published in the journal Physical Review Letters.

After growing "increasingly frustrated" with the Google Maps experience, Fast Company's Michael Grothaus has highlighted five main reasons the app has "become a cluttered, frustrating mess" -- and why he finds himself turning to Apple Maps more often. An anonymous Slashdot reader shares an excerpt from the report: ENOUGH WITH THE HOTEL AND BAR PINS: Whenever I'm in a major metropolitan area, Google Maps seems to have an obsession with displaying as many hotels, bars, and clubs on the map as it can. This happens even when I haven't searched for a single hotel or bar. And it happens not only when I'm on vacation in a new city, but when I'm in my home city. Google knows my home address. So, why on Earth does it default to showing me as many hotels as possible in the city where I live? The same is true of clubs and bars. I see pins for more dance clubs and bars in one small area shown on my smartphone's display than I've ever actually been to in my life. Google knows I'm middle-aged and get up early to work. When I'm just browsing the map, can it really think I might care about the nearest club where patrons normally don't leave until well past midnight? By displaying all these irrelevant hotels and bars, Google makes it much harder to browse and navigate the map, since frequently the pins' labels overlap or obscure more important elements, such as the shape and layout of streets.

TOO MANY ADS CLUTTER THE MAP: The square pins you see in Google Maps are ad pins. They represent a place of business (a hotel, spa, etc.) that is paying Google to make sure it's displayed on the map, despite the business's irrelevance to me. Again, ad pins for hotels dominate, but right behind them are ad pins for restaurants with small text underneath them imploring me to "Order Delivery with Uber Eats," which just further clutters the map. Google is, of course, first and foremost an advertising company. Data compiled by Oberlo showed that 78.2% of its Q1 2023 total revenue of $69.8 billion came from ads. But its enthusiasm for placing ads in every corner of Google Maps just makes it all the more cluttered and increasingly hard to read. And that's before we even get to

PHOTO PINS SIGNIFY WHAT, EXACTLY?: Google Maps identifies points of interest primarily by pin color and glyph: Hotels are represented by a pink pin with an image of a person sleeping in a bed, restaurants get an orange pin with a fork and knife, and so forth. Regular pins, denoting businesses or other points of interest, are reverse teardrop-shaped, while ad pins are square-shaped. But, since last year, there is also now a third form: the photo pin. As best as I can tell, a photo pin is a pin for a business, but instead of a typical category glyph, it shows a large photo ostensibly related to the establishment. These pins don't appear to signify that the business is notable in any way. (I mean, I'm sure I've seen photo pins for muffler repair shops -- not exactly a tourist attraction.) The photo pin might be the ultimate map monopolizer. It's bigger, and the photo, seemingly pulled from a business's Google Maps listing, doesn't always even represent the business well. One photo pin I came across, oddly, seemed to show a photo of the dumpsters behind a restaurant. This just adds to user confusion and more clutter. It isn't helping the business, either.

I HAVE NO INTEREST IN SOMEONE'S WORK-FROM-HOME BUSINESS: Another major contributor to Google Maps being an eyesore these days is a holdover from the pandemic when so many people were stuck working from home -- or decided to begin offering their services from home. It is not uncommon to be browsing a residential area on Google Maps and be faced with a sea of work-from-home business pins. The number of "consultant" businesses I've seen in residential areas on Google Maps has been shocking. The same goes for web designers, app programmers, and handymen -- all of whom operate out of their residential homes. These may all be legitimate businesses run by self-employed people, but why on earth does Google Maps surface their listings on maps if they never have a single client enter their doors and, more important, if I've not searched for a provider of any of these services? Clutter, clutter, clutter.

WHY WON'T YOU SHOW ME THE STREET NAME?: Finally, Google Maps seems more intent today on showing bars, restaurants, ads, and work-from-home businesses than useful map-related features. Sometimes it doesn't even show the most basic information anymore, including street names. Many times I just want to see the name of the street I'm standing on. So, I open Google Maps and zoom in on my current location. Yet no matter how far in I zoom in, Google Maps doesn't always apply a label to the street I'm standing on. It just remains blank. Of course, business pins I have no interest in are still prominently displayed. A workaround I've stumbled upon whenever this happens is to select a business pin on the next street over. When Google Maps centers on that, it for some reason will label the street I'm standing on. Among all the gripes on this list, I think this one is my biggest. If my ad-hoc workaround doesn't work, I often have to open Apple Maps just to look up the name of the street I'm on.

Britain faces being left with no hope of meeting its crucial climate crisis goals and losing its status as a world leader in offshore wind energy without an urgent overhaul of government support, ministers are being warned. From a report: The sudden halting of one of the country's biggest offshore windfarm projects last month could signal a "tipping point" in the construction of new sites unless ministers intervene, a number of senior energy industry figures told the Observer.

They warn that a swathe of new projects, which Britain is relying on to meet key climate targets, could also become economically unviable under the existing regime. While the industry has been hit by huge price inflationary pressures, it warns that the government has failed to adjust the scheme that guarantees the price it is paid for energy. "If the government doesn't do something, there's a very real risk that, come September, just before party conferences, the story won't just be about getting rid of the 'green crap' -- it'll be about failing to deliver on the projects they've already said that they wanted," said one industry insider.

After a hurricane hit Florida, 484 buildings just at the Tyndall Air Force base were destroyed or damaged beyond repair. Five years later, it's part of a $5 billion, nine-year rebuilding effort the Washington Post describes as rare "blank slate." The plan is "not merely to rebuild it, but to construct what the U.S. military calls 'the installation of the future,' which will be able to withstand rising seas, stronger storms and other threats..." The rebuild at Tyndall, which is expected to continue into 2027, marks the largest military construction project undertaken by the Pentagon. "Think of it as the Air Force throwing its Costco card down on the table and buying buildings in bulk," said Michael Dwyer, deputy chief of the Natural Disaster Recovery Division. A dizzying array of new technologies and approaches have been incorporated into the effort, from semiautonomous robot dogs patrolling the grounds to artificial intelligence software designed to detect and deter any armed person who enters the base.

But the most robust funding is aimed at making Tyndall more efficient, connected and resilient in the face of a warming world. Structures under construction — from dormitory complexes to a child care center to hangars that will house three new squadrons of the F-35A Lightning II later this year — are being built to withstand winds in excess of 165 mph. Steel frames, high-impact windows, concrete facades and roofing with additional bracing are among the features meant to weather the stronger storms to come.

At nearby Panama City, sea level rise has accelerated in recent years, with federal data showing seas have risen there more than 4 inches since 2010. Planners factored in the potential for as much as 7 feet of sea level rise by the end of the century, and as a result placed the "vast majority" of new buildings at elevations that should be safe from storm surges for decades, Dwyer said. In addition, sensors placed near the low spots of buildings will send alerts the moment a flood threatens. The Air Force also has created a "digital twin" of Tyndall — essentially, a virtual duplicate of the base that allows officials to simulate how roads, buildings and other infrastructure would hold up in different scenarios, such as a hurricane or historic rainfall events.
Other efforts include restoring the beach's 10-foot sand dunes and its rocky shoreline, along with "the installation of submerged oyster reef breakwater that can reduce wave energy and erosion."

But the article points out that the Air Force also has a second hope for their base: "that the lessons unfolding here can be replicated at other bases around the world that will face — or already are facing — similar threats...

Is natural gas really a cleaner alternative to coal and oil? That claim "is facing increasing scrutiny," writes Slashdot reader sonlas: One significant concern with natural gas is the release of methane, a powerful greenhouse gas, during its extraction, production, transportation, and processing. Methane is approximately 30 times more effective at trapping heat in the atmosphere than CO2 over a 100-year period. (And methane leaks can occur at various stages of the gas supply chain, from wellhead emissions during drilling and extraction to leakage during transportation and distribution.) Additionally, intentional venting or flaring of methane also contributes to the problem.

An article published in Environmental Research Letters challenges the assumption that natural gas is a cleaner energy source compared to coal or oil. Their study takes into account the full lifecycle emissions of natural gas, including methane leakage rates, and arrives at a different conclusion. With a methane leakage rate of 7.5% and other relevant factors considered, the greenhouse gas emissions from natural gas can be on par with or even exceed those of coal. Even a lower methane leakage rate of 2% can diminish the environmental advantage of natural gas significantly.

A key aspect of this study is its focus on real-world methane leakage rates. Aerial measurements conducted in various oil and gas production regions in the U.S. revealed substantial methane leak rates ranging from 0.65% to a staggering 66.2%. (Similar leakage rates have been identified in other parts of the world.) These findings raise serious concerns about the climate impact of natural gas and cast doubt on its role as a so-called "transition energy" in the quest for cleaner and more sustainable energy sources, especially liquefied natural gas...

This complicates the search for sustainable energy solutions, especially in Europe where gas was included in the green taxonomy following a push from Germany.

A new analysis "shows that over 4,000 gigawatts (GW) of offshore wind potential is available along the U.S. coastline," capable of fulfilling up to 25% of U.S. energy demand in 2050. (And it could also add $1.8 trillion in economy-boosting investment, while employing up to 390,000 workers.)

This new analysis comes from Berkeley researchers, who worked with nonprofit clean energy research firm GridLab and climate policy think tank Energy Innovation, reports the Verge: The Biden administration has committed to halving the nation's emissions by the end of the decade and has plans to source electricity completely from carbon pollution-free energy by 2035. Adding to that urgency, U.S. electricity demand is forecast to nearly triple by 2050, according to the Berkeley report. On top of a growing economy, the clean energy transition means electrifying more vehicles and homes — all of which put more stress on the power grid unless more power supply comes online at a similar pace.

To meet that demand and hit its climate goals, the report says the U.S. has to add 27 gigawatts of offshore wind and 85 GW of land-based wind and solar each year between 2035 and 2050. That timeline might still seem far away, but it's a big escalation of the Biden administration's current goal of deploying 30 GW of offshore wind by 2030. Europe, with an electricity grid about 70% the size of the U.S., already has about as much offshore wind capacity as the Biden administration hopes to build up by the end of the decade. Right now, wind energy makes up just over 10% of the U.S. electricity mix, and nearly all of that comes from land-based turbines...

For now, the U.S. has just two small wind farms off the coasts of Rhode Island and Virginia. Construction started on the foundations for the nation's first commercial-scale wind farm off Martha's Vineyard, Massachusetts, in June... Project costs have gone up with higher interest rates and rising prices for key commodities like steel, Heatmap reports. That's led to power purchase agreements falling through for some projects in early development, including plans in Rhode Island for an 884-megawatt wind farm that alone would have added more than 20 times as much generation capacity as the U.S. has today from offshore wind. Developers are struggling to make projects profitable without passing costs on to consumers...

The study found a modest 2 to 3 percent increase in wholesale electricity costs with ambitious renewable energy deployment. But renewable energy costs have fallen so dramatically in the past that the researchers think those costs could wind up being smaller over time.
The report points out that wind energy complements solar, by producing the most wind energy right when demand is peaking (in the summertime on the West Coast, and during the winter on the East Coast).

Recently Ars Technica reported on "another application for SpaceX's Starship architecture that the company is studying," adding that NASA "is on board to lend expertise.

"Though still in a nascent phase of tech development, the effort could result in repurposing Starship into a commercial space station, something NASA has a keen interest in because there are no plans for a government-owned research lab in low-Earth orbit after the International Space Station is decommissioned after 2030." NASA announced last month a new round of agreements with seven commercial companies, including SpaceX. The Collaborations for Commercial Space Capabilities (CCSC) program is an effort established to advance private sector development of emerging products and services that could be available to customers — including NASA — in approximately five to seven years... NASA passed over SpaceX's bid for a funded space station development agreement in 2021, identifying concerns about SpaceX's plans for scaling its life-support system to enable long-duration missions and SpaceX's plan for a single docking port, among other issues. The space agency isn't providing any funding for the new CCSC effort, which includes the Starship space station concept, but the government will support the industry with technical expertise, including expert assessments, lessons learned, technologies, and data.

Apart from the SpaceX agreement, NASA said it will provide non-financial support to Blue Origin's initiative to develop a crew spacecraft for orbital missions that would launch on the company's New Glenn rocket. The agency also supports Northrop Grumman's development of a human-tended research platform in low-Earth orbit to work alongside the company's planned space station. The other companies NASA picked for unfunded agreements were: Sierra Space's proposal for a crewed version of its Dream Chaser spacecraft, Vast's concept for a privately owned space station, ThinkOrbital's plan to develop welding, cutting, inspection, and additive manufacturing technology for construction work in space, and Special Aerospace Services for collaboration on an autonomous maneuvering unit to assist, or potentially replace, spacewalkers working outside a space station.

Despite the lack of NASA funding, the new collaboration announcement with SpaceX laid out — in broad strokes, at least — one of the directions SpaceX may want to take Starship. NASA said it will work with SpaceX on an "integrated low-Earth orbit architecture" that includes the Starship vehicle and other SpaceX programs, including the Dragon crew capsule and Starlink broadband network.
The artice links to a recent NASA document detailing SpaceX's space station concept. Phil McAlister, who heads NASA's commercial spaceflight division, says its size and reduced cost "could have a far-reaching impact on the sustainable development of the low-Earth orbit) economy...

"Adding increased confidence is the company's plan to self-fund Starship development from its launch and satellite enterprises."

Thanks to long-time Slashdot reader Amiga Trombone for sharing the article.

"NASA has reestablished full communications with Voyager 2," according to a mission update posted Friday: The agency's Deep Space Network facility in Canberra, Australia, sent the equivalent of an interstellar "shout" more than 12.3 billion miles (19.9 billion kilometers) to Voyager 2, instructing the spacecraft to reorient itself and turn its antenna back to Earth. With a one-way light time of 18.5 hours for the command to reach Voyager, it took 37 hours for mission controllers to learn whether the command worked. At 12:29 a.m. EDT on Aug. 4, the spacecraft began returning science and telemetry data, indicating it is operating normally and that it remains on its expected trajectory.
"Had the Earth-based signals not reached Voyager 2, the spacecraft is already programmed to reorient itself multiple times a year to keep its antenna pointing in our planet's direction," CNN points out. "The next reset was already scheduled for October 15. But the team didn't want to wait that long..."

After controllers sent the wrong command to the 46-year-old spacecraft, Voyager 2's antenna needed to be shifted "a mere 2 degrees," notes The Associated Press:

Voyager 2 has been hurtling through space since its launch in 1977 to explore the outer solar system. Launched two weeks later, its twin, Voyager 1, is now the most distant spacecraft — 15 billion miles (24 billion kilometers) away — and still in contact. As long as their plutonium power holds, the Voyagers may be alive and well for the 50th anniversary of their launch in 2027, according to Dodd. Among the scientific tidbits they've beamed back in recent years include details about the interstellar magnetic field and the abundance of cosmic rays.

Capella Space's synthetic aperture radar satellites are falling back to Earth much sooner than than the three years they were anticipated to operate, according to publicly available satellite data. TechCrunch reports: The startup has launched a total of ten small satellites to low Earth orbit since 2018, including eight in its family of "Whitney"-class spacecraft. Five of these satellites have reentered the atmosphere since the end of January of this year, including three of the Whitneys. Those Whitney sats were in orbit for less than two-and-a-half years; one, Capella-5, was in orbit for less than two years. That leaves five of the constellation in orbit, including the Capella-9 and Capella-10 launched on March 16, which are operating at an altitude of around 584 km and 588 km, respectively.

According to filings with the Federal Communication Commission, the propulsion system of Capella-9 was built by Phase Four. At least one of the satellites that has reentered prematurely, Capella-5, also used Phase Four propulsion. In that same filing from March 2022, Capella said its Capella-9 satellite would operate at an orbital altitude of 525 km, and maintain an altitude between 475-575 km for three years. It seems this is the typical mission profile of Capella satellites. But Capella-7 and Capella-8, launched in January 2022, appear to be now operating below 400 kilometers, and will likely deorbit in a matter of weeks to a few months. The unexpected decay could be due to a problem with the propulsion system, or a systematic miscalculation of its requirements.

"Probably they [Capella-7 and Capella-8] will reenter in Sep-Oct or so," astronomer and analyst Jonathan McDowell said when reviewing the data at TechCrunch's request. "I suspect propulsion failures but certainly it isn't clear." In a statement to TechCrunch, Capella CEO Payam Banazadeh confirmed that some of the satellites have been deorbiting faster than expected "due to the combination of increased drag due to much higher solar activity than predicted by NOAA and less than expected performance from our 3rd party propulsion system." "We have upgraded our propulsion system on all future satellites to account for these facts, including the launch of our next generation satellite Acadia-1, currently scheduled for launch on August 5th 2023. We plan to launch eight of our next generation Acadia satellites over the next 12 months," he added.

Paul Voosen writes via Science: Regulations imposed in 2020 by the United Nations's International Maritime Organization (IMO) have cut ships' sulfur pollution by more than 80% and improved air quality worldwide. The reduction has also lessened the effect of sulfate particles in seeding and brightening the distinctive low-lying, reflective clouds that follow in the wake of ships and help cool the planet. The 2020 IMO rule "is a big natural experiment," says Duncan Watson-Parris, an atmospheric physicist at the Scripps Institution of Oceanography. "We're changing the clouds."

By dramatically reducing the number of ship tracks, the planet has warmed up faster, several new studies have found. That trend is magnified in the Atlantic, where maritime traffic is particularly dense. In the shipping corridors, the increased light represents a 50% boost to the warming effect of human carbon emissions. It's as if the world suddenly lost the cooling effect from a fairly large volcanic eruption each year, says Michael Diamond, an atmospheric scientist at Florida State University.

The natural experiment created by the IMO rules is providing a rare opportunity for climate scientists to study a geoengineering scheme in action -- although it is one that is working in the wrong direction. Indeed, one such strategy to slow global warming, called marine cloud brightening, would see ships inject salt particles back into the air, to make clouds more reflective. In Diamond's view, the dramatic decline in ship tracks is clear evidence that humanity could cool off the planet significantly by brightening the clouds. "It suggests pretty strongly that if you wanted to do it on purpose, you could," he says. The findings are available in a new preprint in Atmospheric Chemistry and Physics (ACP).

Environmental campaigners have called on the government to learn from its own successes after official figures showed the use of single-use supermarket plastic bags had fallen 98% since retailers in England began charging for them in 2015. From a report: Annual distribution of plastic carrier bags by seven leading grocery chains plummeted from 7.6bn in 2014 to 133m last year, the Department for Environment, Food and Rural Affairs (Defra) said on Monday. Rebecca Pow, the minister for environmental quality and resilience, said the policy had "helped to stop billions of single-use carrier bags littering our neighbourhoods or heading to landfill." The government claimed the average person in England now bought just two single-use carrier bags a year from major retailers.

Campaigners welcomed the finding but said the statistic did not account for all types of plastic bag . They also questioned the timing of the announcement, made as experts said plans for 100 new North Sea oil and gas wells, announced the same day by the prime minister would "send a wrecking ball through the UK's climate commitments." A 5p charge for carrier bags was introduced in English supermarkets in 2015. In 2021, the charge was increased to 10p and extended to all businesses. Since then, the number of plastic bags used across all retailers had fallen 35%, from 627m in 2019-20 to 406m in 2022-23, Defra said. Wales had introduced a 5p charge in 2011, Northern Ireland followed suit in 2013 and Scotland did so in 2014. Scotland and Northern Ireland have since raised their charges to 10p and 25p respectively.

Airbus is forming a joint venture with US start-up Voyager to compete to build a replacement for the International Space Station, an internationally funded laboratory in space that is due to be decommissioned by the end of the decade. From a report: The deal announced on Wednesday formalises the partnership unveiled in January on Voyager's Starlab project and will see Airbus replace US defence company Lockheed Martin as its main industrial partner. Starlab is one of the frontrunners in a race launched by Nasa four years ago to develop commercial alternatives to the ISS, which was launched 23 years ago and orbits some 420 kms above the earth.

The ISS is an international collaboration, funded by national space agencies from the US, EU, Canada, Japan and Russia. Since its launch it has hosted 258 astronauts and cosmonauts from 20 countries. Among the other contenders in the race trying to build a replacement is Jeff Bezos's Blue Origin, which is leading a consortium offering a 30,000 sq ft "ecosystem" of different habitats and services for industry, research and tourism. Nasa has allocated $550mn to four consortiums in the first phase of the competition, which will examine the spacecraft design and the business cases of each contender. The US agency has insisted each be commercially viable.

An asteroid-hunting algorithm called HelioLinc3D has spotted a potentially hazardous 600-foot-long space rock that's currently about 4 astronomical units from Earth. The asteroid is 2022 SF289 and "swings by Earth on the opposite side of its orbit, classifying it as a potentially hazardous asteroid (or PHA)," reports Gizmodo. From the report: "Potentially hazardous" merely means there is some chance the object could impact Earth, and thus it is worth keeping an eye on. What's significant about 2022 SF289 is not that it is hazardous, but that it was spotted by a new algorithm called HelioLinc3D. The recent asteroid spotting demonstrated that the algorithm can detect near-Earth asteroids with fewer observations than traditional methods. Because the Rubin Observatory is not yet up and running, HelioLinc3D was tested using the University of Hawaii's ATLAS survey.

"By demonstrating the real-world effectiveness of the software that Rubin will use to look for thousands of yet-unknown potentially hazardous asteroids, the discovery of 2022 SF289 makes us all safer," said Ari Heinze, a scientist and researcher at the Rubin Observatory and the University of Washington, and the principal developer of the new algorithm, in a university release. "This is just a small taste of what to expect with the Rubin Observatory in less than two years, when HelioLinc3D will be discovering an object like this every night," said Mario Juric, a scientist at the Rubin Observatory, director of the DiRAC Institute, astronomer at the University of Washington, and leader of the team behind HelioLinc3D, in the same release.

"From HelioLinc3D to AI-assisted codes, the next decade of discovery will be a story of advancement in algorithms as much as in new, large, telescopes," Juric added. The Rubin Observatory is now expected to commence its observations in early 2025, though we'll have to wait and see if that timeline sticks.

The United Nations' cultural protection agency, UNESCO, plans to recommend adding Venice to its list of World Heritage sites in danger, as the iconic island city faces simultaneous threats from climate change, mass tourism and rapid urban development. From a report: The designation, meant to encourage remedial actions and marshal international support for World Heritage sites, is recommended in a UNESCO report published Monday ahead of its World Heritage Committee meeting in September. The List of World Heritage in Danger identifies dozens of sites that are "threatened by serious and specific dangers," such as armed conflict or natural disasters. It includes Odessa in Ukraine, which was added in January because of war-related threats, and the Everglades in Florida, which faces environmental degradation.

The proposal by UNESCO is the latest alarm bell over the future of Venice -- one of the world's most fragile and popular cities -- as well as the Italian government's efforts to protect it. Built across 118 small islands, the city was first designated as a World Heritage site in 1987 for its architectural splendor and work of master artists including Giorgione and Titian, among others. "It is tragic that the state of conservation of one of the most treasured cultural sites in the world is of such concern" that experts are considering Venice for the "in danger" list, Helene Marsh, a professor of environmental science at Australia's James Cook University who has researched climate change and World Heritage sites, said in an email. A warming world poses an "existential threat" to preservation and conservation, Marsh said.

Nasa engineers hope to re-establish contact with the Voyager 2 spacecraft after sending a faulty command that severed communications with the far-flung probe. From a report: The spacecraft is one of a pair that launched in 1977 to capture images of Jupiter and Saturn, but continued on a journey into interstellar space to become the farthest human-made objects from Earth. The space agency lost contact with Voyager 2, which is now more than 12bn miles away, when mission staff accidentally beamed the wrong command to the distant spacecraft more than a week ago.

The command caused the probe to tilt its antenna away from Earth, and although the direction it is pointing in changed by only 2%, the shift was enough for engineers operating receivers on Earth to lose touch with it. Voyager 2 and its twin, Voyager 1, were launched within a couple of weeks of one another to explore the planets and moons of the outer solar system. Voyager 1 is still in contact with Earth and nearly 15bn miles away. In 2012, it became the first probe to enter interstellar space and is now the most distant spacecraft ever built. Voyager 2 hurtled into interstellar space in 2018 after discovering a new moon around Jupiter, 10 moons around Uranus and five around Neptune. It remains the only spacecraft to study all four of the solar system's giant planets at close range.

The European Space Agency's (ESA) Euclid space telescope has released its first test images. New Scientist reports: Euclid launched from Cape Canaveral in Florida on 1 July and took about a month to reach its final orbit about four times as far from Earth as the moon. While it sailed to its destination, researchers on Earth were hard at work turning on and calibrating its two cameras. The telescope's first images show that both cameras are working as expected, peering into the universe in both visible and infrared light. These images show an area of the sky about one-quarter the area of the full moon, but over the course of its six-year mission Euclid is expected to observe an area about 300,000 times larger, covering about a third of the entire sky.

"We see just a few galaxies here, produced with minimum system tuning," said Giuseppe Racca, Euclid's project manager at ESA, in a statement. "The fully calibrated Euclid will ultimately observe billions of galaxies to create the biggest ever 3D map of the sky." Once the instruments are fully calibrated, which is expected to take a few months, Euclid will begin mapping. The ultimate goal is to figure out the distribution of matter in the universe, measuring how it clumps and moves, which will give scientists unprecedented insights into the nature of dark matter and dark energy.

German semiconductor maker Infineon Technologies AG announced that it's producing a printed circuit board (PCB) that dissolves in water. Engadget reports: Jiva's biodegradable PCB is made from natural fibers and a halogen-free polymer with a much lower carbon footprint than traditional boards made with fiberglass composites. A 2022 study by the University of Washington College of Engineering and Microsoft Research saw the team create an Earth-friendly mouse using a Soluboard PCB as its core. The researchers found that the Soluboard dissolved in hot water in under six minutes. However, it can take several hours to break down at room temperature.

In addition to dissolving the PCB fibers, the process makes it easier to retrieve the valuable metals attached to it. âoeAfter [it dissolves], we're left with the chips and circuit traces which we can filter out,â said UW assistant professor Vikram Iyer, who worked on the mouse project. The video [here] shows the Soluboard dissolving in a frying pan with boiling water. "Adopting a water-based recycling process could lead to higher yields in the recovery of valuable metals," said Jonathan Swanston, CEO and co-founder of Jiva Materials. Jiva says the board has a 60 percent smaller carbon footprint than traditional PCBs -- specifically, it can save 10.5 kg of carbon and 620 g of plastic per square meter of PCB.