"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.

Saleforce's chief impact officer, writing in Forbes: Code and computer programming — the backbone of modern business — has a long way to go before it can be called "green..." According to a recent report from the science journal Patterns, the information and communication technology sector accounts for up to 3.9% of global emissions... So far, the focus has been on reducing energy consumption in data centers and moving electrical grids away from fossil fuels. Now, coders and designers are ready for a similar push in software, crypto proof of work and AI compute power...

Our research revealed that 75% of UX designers, software developers and IT operations managers want software to do less damage to the environment. Yet nearly one in two don't know how to take action. Half of these technologists admit to not knowing how to mitigate environmental harm in their work, leading to 34% acknowledging that they "rarely or never" consider carbon emissions while typing a new line of code... Earlier this year, Salesforce launched a sustainability guide for technology that provides practical recommendations for aligning climate goals with software development.
In the article the Salesforce executive makes four recommendations, urging coders to design sites in ways that reduce the energy needed to display them. ("Even small changes to image size, color and type options can scale to large impacts.") They also recommend writing application code that uses less energy, which "can lead to significant emissions reductions, particularly when deployed at scale. Leaders can seek out apps that are coded to run natively in browsers which can lead to improvement in performance and a reduction in energy use."

Their article includes links to the energy-saving hackathon GreenHack and the non-profit Green Software Foundation. (Their site recently described how the IT company AVEVA used a Raspberry Pi in back of a hardware cluster as part of a system to measure software's energy consumption.)

But their first recommendation for fighting the climate crisis is "Adopt new technology like AI" to "make the software development cycle more energy efficient." ("At Salesforce, we're starting to see tremendous potential in using generative AI to optimize code and are excited to release this to customers in the future.")

"NASA took a significant step Tuesday toward allowing humans on the moon to 'live off the land,'" reports the Washington Post.

NASA awarded several contracts "to build landing pads, roads and habitats on the lunar surface, use nuclear power for energy, and even lay a high-voltage power line over half a mile..." Instead of going to the moon and returning home, as was done during the Apollo era of the 1960s and early '70s, NASA intends to build a sustainable presence focusing on the lunar South Pole, where there is water in the form of ice. The contracts awarded Tuesday are some of the first steps the agency is taking toward developing the technologies that would allow humans to live for extended periods of time on the moon and in deep space. Materials on the moon must be used to extract the necessities such as water, fuel and metal for construction, said Prasun Desai, NASA's acting associate administrator for space technology. "We're trying to start that technology development to make that a reality in the future," he said.

The largest award, $34.7 million, went to billionaire Jeff Bezos's Blue Origin space venture, which has been working on a project since 2021 called Blue Alchemist to build solar cells and transmission wire out of the moon's regolith — rocks and dirt. In a blog post this year, Blue Origin said it developed a reactor that reaches temperatures of nearly 3,000 degrees and uses an electrical current to separate iron, silicon and aluminum from oxygen in the regolith. The testing, using a lunar regolith simulant, has created silicon pure enough to make solar cells to be used on the lunar surface, the company said. [NASA says it could also be used to make wires.] The oxygen could be used for humans to breathe. "To make long-term presence on the moon viable, we need abundant electrical power," the company wrote in the post. "We can make power systems on the moon directly from materials that exist everywhere on the surface, without special substances brought from Earth."

The award is another indication that Blue Origin is trying to position itself as a key player in helping NASA build a permanent presence on and around the moon as part of the Artemis program... The company said it is developing a solar-powered storage tank to keep propellants at 20 degrees Kelvin, or about minus-423 degrees Fahrenheit, so spacecraft can refuel in space instead of returning to Earth between missions.
Other winners cited in the article:

• Zeno Power, which "intends to use nuclear energy to provide power on the moon," received a $15 million contract (partnering with Blue Origin).

• Astrobotic — which plans to launch a lander to the moon this year — got a $34.6 million contract "to build a power line that would transmit electricity from a lunar lander's solar arrays to a rover. It ultimately intends to build a larger power source using solar arrays on the moon's surface."

• Redwire won a $12.9 million contract "to help build roads and landing pads on the moon. It would use a microwave emitter to melt the regolith and transform treacherous rocky landscapes into smooth, solid surfaces, said Mike Gold, Redwire's chief growth officer."

The technologies — which include in-space 3D printing — "will expand industry capabilities for a sustained human presence on the Moon," NASA said in a statement.

The U.S. space agency will contribute a total of $150 million, with each company contributing at least 10-25% of the total cost (based on their size). "Partnering with the commercial space industry lets us at NASA harness the strength of American innovation and ingenuity," said NASA Administrator Bill Nelson. "The technologies that NASA is investing in today have the potential to be the foundation of future exploration."

"Our partnerships with industry could be a cornerstone of humanity's return to the Moon under Artemis," said acting associate administrator Desai. "By creating new opportunities for streamlined awards, we hope to push crucial technologies over the finish line so they can be used in future missions.

"These innovative partnerships will help advance capabilities that will enable sustainable exploration on the Moon."

A routine sequence of commands has triggered a 2-degree change in Voyager 2's antenna orientation, preventing the iconic spacecraft from receiving commands or transmitting data back to Earth, NASA announced earlier today. Mission controllers transmitted the commands to Voyager 2 on July 21. Gizmodo reports: Voyager 2, one of two twin probes launched in the 1970s to explore planets in the outer solar system, is located some 12.4 billion miles (19.9 billion kilometers) from Earth and is continually moving deeper into interstellar space. The glitch has disrupted the probe's ability to communicate with ground antennas operated by the Deep Space Network (DSN), and it's unable to receive commands from the mission team on Earth, NASA explained.

The communications pause is expected to be just that -- a pause. Voyager 2 is "programmed to reset its orientation multiple times each year to keep its antenna pointing at Earth," the space agency says. This procedure should -- fingers crossed -- re-establish the lost connection and allow routine communications to resume. The next reset is scheduled for October 15, which is 79 days from now. Undoubtedly, this will be 79 agonizing days for NASA and the Voyager team. Despite the current communication hiatus, the mission team remains confident that Voyager 2 will stay on its planned trajectory. Voyager 1, situated nearly 15 billion miles (24 billion kilometers) away from Earth, "continues to operate normally," NASA added.

The era of global warming has ended and "the era of global boiling has arrived," the UN secretary general, Antonio Guterres, has said after scientists confirmed July was on track to be the world's hottest month on record. From a report: "Climate change is here. It is terrifying. And it is just the beginning," Guterres said. "It is still possible to limit global temperature rise to 1.5C [above pre-industrial levels], and avoid the very worst of climate change. But only with dramatic, immediate climate action." Guterres's comments came after scientists confirmed on Thursday that the past three weeks have been the hottest since records began and July is on track to be the hottest month ever recorded.

Global temperatures this month have shattered records, according to the World Meteorological Organization (WMO) and the EU's Copernicus Earth observation programme, stoked by the burning of fossil fuels and spurring violent weather. The steady rise in global average temperatures, driven by pollution that traps sunlight and acts like a greenhouse around the Earth, has made weather extremes worse. "Humanity is in the hot seat," Guterres told a press conference on Thursday. "For vast parts of North America, Asia, Africa and Europe, it is a cruel summer. For the entire planet, it is a disaster. And for scientists, it is unequivocal -- humans are to blame. All this is entirely consistent with predictions and repeated warnings. The only surprise is the speed of the change. Climate change is here, it is terrifying, and it is just the beginning. The era of global warming has ended; the era of global boiling has arrived."

CNN reports that "There is a 'gravity hole' in the Indian Ocean — a spot where Earth's gravitational pull is weaker, its mass is lower than normal, and the sea level dips by over 328 feet (100 meters)." This anomaly has puzzled geologists for a long time, but now researchers from the Indian Institute of Science in Bengaluru, India, have found what they believe is a credible explanation for its formation: plumes of magma coming from deep inside the planet, much like those that lead to the creation of volcanoes. To come to this hypothesis, the team used supercomputers to simulate how the area could have formed, going as far back as 140 million years. The findings, detailed in a study published recently in the journal Geophysical Research Letters, center around an ancient ocean that no longer exists.

Humans are used to thinking about Earth as a perfect sphere, but that's far from the truth. "The Earth is basically a lumpy potato," said study coauthor Attreyee Ghosh, a geophysicist and associate professor at the Centre for Earth Sciences of the Indian Institute of Science. "So technically it's not a sphere, but what we call an ellipsoid, because as the planet rotates the middle part bulges outward." Our planet is not homogeneous in its density and its properties, with some areas being more dense than others — that affects Earth's surface and its gravity, Ghosh added. "If you pour water on the surface of the Earth, the level that the water takes is called a geoid — and that is controlled by these density differences in the material inside the planet, because they attract the surface in very different ways depending on how much mass there is underneath," she said. The "gravity hole" in the Indian Ocean — officially called the Indian Ocean geoid low — is the lowest point in that geoid and its biggest gravitational anomaly, forming a circular depression that starts just off India's southern tip and covers about 1.2 million square miles (3 million square kilometers).

Tuesday North America's largest lithium mining operation cleared its last legal hurdle in federal appeals court, giving a green light to the mining of 6,000 acres in an 18,000-acre project site near Nevada's northern border.

But meanwhile, in Southern Nevada... Federal land managers have formally withdrawn their authorization of a Canadian mining company's lithium exploration project bordering a national wildlife refuge in southern Nevada after conservationists sought a court order to block it.

The Center for Biological Diversity and the Amargosa Conservancy said in a lawsuit filed July 7 that the project on the edge of the Ash Meadows National Wildlife Refuge outside Las Vegas posed an illegal risk to a dozen fish, snail and plant species currently protected under the Endangered Species Act. They filed an additional motion this week in federal court seeking a temporary injunction prohibiting Rover Metals from initiating the drilling of 30 bore sites in search of the highly sought-after metal used to manufacture batteries for electric vehicles.

But before a judge in Las Vegas could rule on the request, the Bureau of Land Management notified Rover Metals on Wednesday that its earlier acceptance of the company's notice of its intent to proceed "was in error... The agency has concluded that proposed operations are likely to result in disturbance to localized groundwaters that supply the connected surface waters associated with Threatened and Endangered species in local springs," said Angelita Bulletts, district manager of the bureau's southern Nevada district...

Conservationists said the reversal provides at least a temporary reprieve for the lush oasis in the Mojave Desert that is home to 25 species of fish, plants, insects and snails that are found nowhere else on Earth — one of the highest concentrations of endemic species in North America at one of the hottest, driest places on the planet.
The article ends with this quote from a director at the Center for Biological Diversity and the Amargosa Conservancy. "We need lithium for our renewable energy transition, but this episode sends a message loud and clear that some places are just too special to drill."

In 2018 a doctoral student spotted "a spinning celestial space object," reports CNN. "The unfamiliar object released giant bursts of energy and beamed out radiation three times per hour."

But that was just the beginning... In those moments, it became the brightest source of radio waves viewable from Earth through radio telescopes, acting like a celestial lighthouse. Researchers thought the phenomenon might be a remnant of a collapsed star — either a dense neutron star or a dead white dwarf star — with a strong magnetic field. Or perhaps the object was something else entirely... "We were stumped," said Dr. Natasha Hurley-Walker, senior lecturer at the Curtin University node of ICRAR, in a statement. "So we started searching for similar objects to find out if it was an isolated event or just the tip of the iceberg." The team observed the sky using the Murchison Widefield Array, a radio telescope on Wajarri Yamaji Country in outback Western Australia, between July and September 2022. The scientists discovered an object 15,000 light-years from Earth in the Scutum constellation. The object, dubbed GPM J1839-10, released radio waves every 22 minutes. The bursts of energy lasted up to five minutes.

Astronomers believe it could be a magnetar, or a rare type of star with extremely strong magnetic fields that is capable of releasing powerful, energetic bursts. But if the object is a magnetar, it defies description because all known magnetars release energy in a matter of seconds, or a few minutes at the most. A study detailing the discovery was published Wednesday in the journal Nature. "This remarkable object challenges our understanding of neutron stars and magnetars, which are some of the most exotic and extreme objects in the Universe," said Hurley-Walker, who was the lead author of the new report...

"Assuming it's a magnetar, it shouldn't be possible for this object to produce radio waves. But we're seeing them. And we're not just talking about a little blip of radio emission. Every 22 minutes, it emits a five-minute pulse of radio wavelength energy, and it's been doing that for at least 33 years. Whatever mechanism is behind this is extraordinary."
The astronomers "searched through the archives of radio telescopes that have been operational for decades," the article points out — and ultimately confirmed the existence of the phenomenon. "It showed up in observations by the Giant Metrewave Radio Telescope in India and the Very Large Array in the USA had observations dating as far back as 1988," Hurley-Walker said.

"That was quite an incredible moment for me. I was five years old when our telescopes first recorded pulses from this object, but no one noticed it, and it stayed hidden in the data for 33 years. They missed it because they hadn't expected to find anything like it."

An anonymous reader quotes a report from the BBC: The month of June and the first few days of July were hotter than any in recorded history, according to the World Meteorological Organization (WMO). Residents in the south of the US and southern Europe have been enduring sweltering temperatures, bringing excessive heat warnings, wildfires and plummeting air quality. However, records are not just being broken on land -- but in the water. Global ocean sea surface temperatures were higher than any previous June on record, according to a report by the Copernicus Climate Change Service, with satellite readings in the North Atlantic in particular "off the charts." Last month also set a record at the US National Oceanic and Atmospheric Administration (NOAA) for the biggest difference between expected and actual sea surface temperatures. Water temperatures around Florida, in particular, have been particularly warm. Scientists have also been tracking a large ongoing marine heatwave off the west coast of the US and Canada since it formed in May.

While the heatwave has since lessened in the north-east Atlantic, according to non-profit science organization Mercator Ocean International, another in the western Mediterranean now appears to be intensifying, particularly around the Strait of Gibraltar. This week, sea surface temperatures along the coasts of Southern Spain and North Africa were 2-4C (3.6-7.2F) higher than they would normally be at this time of year, with some spots 5C (9F) above the long-term average. Extreme marine temperatures have also recently been observed around Ireland, the UK and in the Baltic Sea, as well as areas near New Zealand and Australia. More recently, scientists suspect a possible heatwave south of Greenland in the Labrador Sea. "We are having these huge marine heatwaves in different areas of the ocean unexpectedly evolve very early in the year, very strong and over large areas," says Karina von Schuckmann, an oceanographer at Mercator Ocean.

Carlo Buontempo, director of the European Union's Copernicus Climate Change Service, says scientists expect big temperature variations in the Pacific Ocean associated with the El Nino weather pattern, a phase of planet-warming weather which is just beginning, although NOAA is monitoring a large heatwave in the Gulf of Alaska that has been sitting offshore since late 2022. But what we're currently seeing in the North Atlantic is "truly unprecedented", says Buontempo. Scientists are still trying to unravel its full causes. [...] More broadly, experts say the persistence of recent marine heatwaves is a worrying sign about how climate change is unfolding, alongside heatwaves on land, unusual melting of snow cover in the Himalayas and a loss of sea ice. Von Schuckmann notes that, even if humans stopped pumping CO2 into the air tomorrow, the oceans would continue to warm up for many years yet. "I am concerned as a climate scientist that we are further than we thought we are."

Last month was the planet's warmest June since global temperature record-keeping began in 1850, the National Oceanic and Atmospheric Administration said in its monthly climate update on Thursday. From a report: The agency also predicts unusually hot temperatures will occur in most of the United States, almost everywhere except the northern Great Plains, during August. The first two weeks of July were also likely the Earth's warmest on human record, for any time of year, according to the European Union's Copernicus Climate Change Service.

Many daily temperature records were set in June across the Southern United States, particularly in Texas and Louisiana. Temperatures in Laredo, Texas, reached 100 degrees on more than 20 days in June. Austin, El Paso and San Antonio reached triple digits on more than 10 days each. The heat index, which also accounts for humidity, was well past 100 much of the time in all of these cities. Extreme heat can be dangerous for anyone's body, but older people and outdoor workers are at particular risk. Summer heat waves in Europe last year may have killed 61,000 people across the continent, according to a recent study. This year's heat and humidity have been devastating in northern Mexico, where more than 100 people have died of heat-related causes, according to reports from the federal health ministry.

Mary and Gary Freeman, founders of a Florida-based lab supplies company, discovered a rich lithium deposit in Maine while searching for tourmaline, a striking, multi-colored gemstone found in the region. The timing of their find is significant as it could provide the United States with a domestic source of lithium for the clean energy transition and potentially be worth $1.5 billion. However, there's strong opposition to developing a mine. "Maine has some of the strictest mining and water quality standards in the country, and prohibits digging for metals in open pits larger than three acres," reports TIME. "There have not been any active metal mines in the state for decades, and no company has applied for a permit since a particularly strict law passed in 2017." Slashdot reader schwit1 shares an excerpt from the report: "This is a story that has been played out in Maine for generations," says Bill Pluecker, a member of the state's House of Representatives, whose hometown of Warren -- a 45-minute drive from the capital city of Augusta -- recently voted overwhelmingly in favor of a temporary ban on industrial metal mining after a Canadian company came looking for minerals near a beloved local pond. "We build industries based on the needs of populations not living here and then the bottom drops out, leaving us struggling again to pick up the pieces." "Our gold rush mentality regarding oil has fueled the climate crisis," says State Rep. Margaret O'Neil, who presented a bill last session that would have halted lithium mining for five years while the state worked out rules (the legislation ultimately failed). "As we facilitate our transition away from fossil fuels, we must examine the risks of lithium mining and consider whether the benefits of mining here in Maine justify the harms."

The Freemans' point out that they plan to dig for the spodumene, then ship it out of state for processing, so there would be no chemical ponds or tailings piles. They liken the excavation of the minerals to quarrying for granite or limestone, which enjoys a long, rich history in Maine. Advocates for mining in the U.S. argue that, since the country outsources most of its mining to places with less strict environmental and labor regulations, those harms are currently being born by foreign residents, while putting U.S. manufacturers in the precarious position of depending on faraway sources for the minerals they need. Though there are more than 12,000 active mines in the U.S., the bulk of them are for stone, coal, sand, and gravel.

There is only one operational lithium mine in the U.S., in Nevada, and one operational rare earth element mine, in Mountain Pass, Calif., meaning that the U.S. is dependent on other countries for the materials essential for clean energy technologies like batteries, wind turbines, and solar panels. Even after they're mined, those materials currently have to be shipped to China for processing since the U.S. does not have any processing facilities. "If we're talking about critical metals and materials, we're so far behind that it's crazy," says Corby Anderson, a professor at the Colorado School of Mines. "It's the dichotomy of the current administration -- they have incentives for electric vehicles and all these things, but they need materials like graphite, manganese, nickel, cobalt, lithium, and copper. The only one we mine and refine in this country is copper." Further reading: Federal Ruling Approves Construction of North America's Largest Lithium Mine