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Communications

Satellite Operator SES Acquiring Intelsat In $3.1 Billion Deal (space.com) 13

Satellite operator SES plans to buy fellow satellite operator Intelsat, in a $3.1 billion deal that's expected to close next year. According to Space Magazine, the combined company could help it "compete with SpaceX's huge Starlink broadband network." From the report: SES and Intelsat both operate communications satellites in geostationary orbit, which lies 22,236 miles (35,785 kilometers) above Earth. SES also runs a constellation called O3b in medium Earth orbit, at an altitude of about 5,000 miles (8,000 km). As [SES CEO Adel Al-Saleh] noted, there is increasingly fierce competition for the services provided by these satellites -- for example, from SpaceX's Starlink megaconstellation in low Earth orbit. And other LEO megaconstellations are in the works as well. For instance, Amazon launched the first two prototypes for its planned 3,200-satellite Project Kuiper network this past October.

"By combining our financial strength and world-class team with that of SES, we create a more competitive, growth-oriented solutions provider in an industry going through disruptive change," Intelsat CEO David Wajsgras said in the same statement. "The combined company will be positioned to meet customers' needs around the world and exceed their expectations," he added.

Earth

Extreme Heat Continues To Scorch Large Parts of Asia (straitstimes.com) 37

Large swathes of Asia are sweltering through a heatwave that has topped temperature records from Myanmar to the Philippines and forced millions of children to stay home from school. From a report: In India, record temperatures have triggered a deadly heatwave and concerns about voter turnout in the nation's marathon election. Extreme heat has also forced Bangladesh to close all schools across the country. Extreme temperatures have also been recorded in Myanmar and Thailand, while huge areas of the Philippines are suffering from a drought. Experts say climate change has made heatwaves more frequent, longer and more intense, while the El Nino weather phenomenon is also driving this year's exceptionally warm weather.

Approximate voter turnout data after polls closed on April 26 in India -- when stage two of the nation's seven-stage general election took place -- put voter turnout at 61 per cent. This was lower than the 65 per cent in the first phase, and 68 per cent in the second phase five years ago. Among the states that headed to the polls last week was Kerala in the south, where media reports on April 29 said that at least two people -- a 90-year-old woman and a 53-year-old man -- were suspected to have died of heatstroke. Temperatures in Kerala soared to 41.9 deg C, nearly 5.5 deg C above normal temperatures. At least two people have also died in India's eastern state of Odisha, where temperatures hit 44.9 deg C on April 28 -- the highest recorded in April. In neighbouring Bangladesh, students will continue to stay home this week, after schools across the country were ordered shut on April 29. A two-judge bench of the country's High Court passed an order directing all primary and secondary schools and madrasahs (Islamic schools) nationwide to remain closed till May 5, affecting an estimated 32 million students.

Communications

NASA's Psyche Hits 25 Mbps From 140 Miles Away (theregister.com) 61

Richard Speed reports via The Register: NASA's optical communications demonstration has hit 25 Mbps in a test transmitting engineering data back to Earth from 140 million miles (226 million kilometers) away. The payload is riding aboard the Psyche probe, which is headed for an asteroid of the same name. On December 11, when the spacecraft was 19 million miles (30 million kilometers) away, it reached 267 Mbps, which NASA described as "comparable to broadband internet download speeds."

However, as Psyche has continued on its trajectory, the distances have become greater, and the rate at which data can be transmitted and received has tumbled. At 140 million miles, the project's goal was to reach a lofty 1 Mbps. Instead, engineers managed to get 25 Mbps out of the demonstration. Earlier demonstrations tested the technology using preloaded data, such as a cat video. The latest experiment used a copy of engineering data also sent via Psyche's radio transmitter.

"We downlinked about 10 minutes of duplicated spacecraft data during a pass on April 8," said Meera Srinivasan, the project's operations lead at NASA's Jet Propulsion Laboratory (JPL) in Southern California. "Until then, we'd been sending test and diagnostic data in our downlinks from Psyche. This represents a significant milestone for the project by showing how optical communications can interface with a spacecraft's radio frequency comms system." The demonstrator is only along for the ride -- Psyche uses conventional radio technology for its mission. However, the demonstration does point to the potential for higher-bandwidth communications in future projects.

Earth

Countries Consider Pact To Reduce Plastic Production By 40% in 15 Years (theguardian.com) 43

Countries are for the first time considering restrictions on the global production of plastic -- to reduce it by 40% in 15 years -- in an attempt to protect human health and the environment. From a report: As the world attempts to make a treaty to cut plastic waste at UN talks in Ottawa, Canada, two countries have put forward the first concrete proposal to limit production to reduce its harmful effects including the huge carbon emissions from producing it. The motion submitted by Rwanda and Peru sets out a global reduction target, ambitiously termed a "north star," to cut the production of primary plastic polymers across the world by 40% by 2040, from a 2025 baseline.

It says: "The effectiveness of both supply and demand-side measures will be assessed, in whole or in part, on their success in reducing the production of primary plastic polymers to sustainable levels." The proposal calls for the consideration of mandatory reporting by countries of statistical data on production, imports and exports of primary plastic polymers. A global plastic reduction target would be similar to the legally binding Paris agreement to pursue efforts to limit global temperature increase to 1.5C above preindustrial levels, Rwanda and Peru said.

Earth

America's First Big-Rig Hydrogen Fuel Station Opens in California (msn.com) 130

Oakland, California is now home to "the first commercial hydrogen fuel station for big-rig trucks in the United States," according to the Los Angeles Times — serving 30 hydrogen fuel-cell trucks.

The newspaper says the facility "could mark the start of a nationwide network for fuel-cell truck refueling. It could also flop." Hydrogen fuel is expensive — as much as four times more expensive than gasoline or diesel fuel. The fuel cells, which drive electric motors to drive the truck, are enormously expensive as well.... The vehicles themselves are expensive too. Both battery electric and hydrogen fuel-cell trucks can cost three times as much or more than a $120,000 diesel truck. Those buying the trucks can qualify for state and federal subsidies to make up most of the upfront costs.
But government regulations may spark some demand: New diesel truck sales will be outlawed in California by 2036. Only zero-tailpipe-emission new trucks will be allowed. Already, zero-emission requirements are in place for trucks that enter ocean ports. And only two technologies are available to achieve that goal: battery electric trucks and hydrogen fuel-cell trucks. "We believe a good portion of those will be hydrogen vehicles," said Matt Miyasato, chief of public policy for hydrogen fuel distributor FirstElement Fuel. FirstElement, through its True Zero brand fueling stations, is the largest hydrogen vehicle fuel distributor in the U.S...

Battery electric is gaining a strong foothold in the medium-sized delivery truck market, but hydrogen could have a leg up for long-haul trucking. While a fuel cell is comparable in size to a diesel engine, a battery big enough for long-haul trucks adds weight and size and cuts down on the total freight load the truck can deliver. And while an electric truck battery can take hours to recharge, the refill time for hydrogen is more comparable to filling up with diesel fuel.

Space

The Naked-Eye Sky Will (Briefly) Host a New Star (cnn.com) 41

RockDoctor (Slashdot reader #15,477) wants to tell you about a "new" star that will be visible to the naked eye — without a telescope — sometime before September: By "star", I do not mean "comet", "meteorite" or "firefly", but genuine [star] photons arriving here after about 3000 years in flight, causing your eyes to see a bright point on the nighttime sky. When it happens, the star will go from needing-a- telescope-or-good-binoculars-to-see, to being the 50th (or even 30th) brightest star in the sky.

For a week or so. Of course, it could just go full-on supernova, and be visible in daylight for a few weeks, and dominate the night sky for months. But that's unlikely.

Named "T Corona Borealis" (because it's the 20th variable star studied in the constellation "Corona Borealis") it's now visible all night, all year, for about 60% of the world's population (although normally you need binoculars to see it).

But RockDoctor writes that in 2016, "T CrB" (as it is known) has started showing "a similar pattern of changes" to what happened in the late 1930s when it became one of only 10 "recurring nova" known to science: In 2023, the pattern continued and the match of details got better. The star is expected to undergo another "eruption" — becoming one of the brightest few stars in the sky, within the next couple of months. Maybe the next couple of weeks. Maybe the next couple of hours....

Last week, astrophysicist Dr Becky Smethurst posted on the expected event in her monthly "Night Sky News" video blog. If you prefer your information in text not video, the AAVSO (variable star observers) posted a news alert for it's observers a while ago. They also hosted a seminar on the star, and why it's eruption is expected Real Soon Now, which is also on YouTube. A small selection of recent papers on the subject are posted here, which also includes information on how to get the most up-to-date brightness readings (unless you're a HST / JWST / Palomar / Hawai`i / Chile telescope operator). Yes, the "big guns" of astronomy have prepared their "TOO — Target Of Opportunity" plans, and will be dropping normal observations really quickly when the news breaks and slewing TOO the target.

You won't need your eclipse glasses for this. (Dr Becky's video covers where you can send them for re-use.) But you might want to photograph the appropriate part of the sky so you'll notice when the bomb goes off. Bomb? Did I say that the best model for what is happening is a thermonuclear explosion like a H-bomb the size of the Earth detonating? Well, that's the best analogue.

This CNN article includes a nice animation from NASA illustrating the multi-star interaction that's causing the event: The stars in the orbiting pair are close enough to each other that they interact violently. The red giant becomes increasingly unstable over time as it heats up, casting off its outer layers that land as matter on the white dwarf star. The exchange of matter causes the atmosphere of the white dwarf to gradually heat until it experiences a "runaway thermonuclear reaction," resulting in a nova [according to NASA]...

The NASAUniverse account on X, formerly known as Twitter, will provide updates about the outburst and its appearance.

The BBC reiterates the key data points — that "The rare cosmic event is expected to take place sometime before September 2024. When it occurs it will likely be visible to the naked eye. No expensive telescope will be needed to witness this cosmic performance, says NASA."
Power

A Coal Billionaire is Building the World's Biggest Clean Energy Plant - Five Times the Size of Paris (cnn.com) 79

An anonymous reader shared this report from CNN: Five times the size of Paris. Visible from space. The world's biggest energy plant. Enough electricity to power Switzerland. The scale of the project transforming swathes of barren salt desert on the edge of western India into one of the most important sources of clean energy anywhere on the planet is so overwhelming that the man in charge can't keep up. "I don't even do the math any more," Sagar Adani told CNN in an interview last week.

Adani is executive director of Adani Green Energy Limited (AGEL). He's also the nephew of Gautam Adani, Asia's second richest man, whose $100 billion fortune stems from the Adani Group, India's biggest coal importer and a leading miner of the dirty fuel. Founded in 1988, the conglomerate has businesses in fields ranging from ports and thermal power plants to media and cements. Its clean energy unit AGEL is building the sprawling solar and wind power plant in the western Indian state of Gujarat at a cost of about $20 billion.

It will be the world's biggest renewable park when it is finished in about five years, and should generate enough clean electricity to power 16 million Indian homes... [T]he park will cover more than 200 square miles and be the planet's largest power plant regardless of the energy source, AGEL said.

CNN adds that the company "plans to invest $100 billion into energy transition over the next decade, with 70% of the investments ear-marked for clean energy."
Space

How Space Telescopes Spotted an Exoplanet With a Possible Hydrogen-Rich Atmosphere (nasa.gov) 9

In September NASA's James Webb Space Telescope investigated an exoplanet 8.6 times as massive as Earth, and "revealed the presence of carbon-bearing molecules including methane and carbon dioxide." Webb's discovery adds to recent studies suggesting that [planet] K2-18 b could be a Hycean exoplanet, one which has the potential to possess a hydrogen-rich atmosphere and a water ocean-covered surface... The planet's large size — with a radius 2.6 times the radius of Earth — means that the planet's interior likely contains a large mantle of high-pressure ice, like Neptune, but with a thinner hydrogen-rich atmosphere and an ocean surface. Hycean worlds are predicted to have oceans of water. However, it is also possible that the ocean is too hot to be habitable or be liquid.
NASA's announcement included some additional context: K2-18 b orbits the cool dwarf star K2-18 in the habitable zone and lies 120 light-years from Earth in the constellation Leo. Exoplanets such as K2-18 b, which have sizes between those of Earth and Neptune, are unlike anything in our solar system. This lack of equivalent nearby planets means that these 'sub-Neptunes' are poorly understood, and the nature of their atmospheres is a matter of active debate among astronomers. The suggestion that the sub-Neptune K2-18 b could be a Hycean exoplanet is intriguing, as some astronomers believe that these worlds are promising environments to search for evidence for life on exoplanets...

The abundance of methane and carbon dioxide, and shortage of ammonia, support the hypothesis that there may be a water ocean underneath a hydrogen-rich atmosphere in K2-18 b.

Long-time Slashdot reader Baron_Yam noticed some sites resurfacing the news from September this week with more spectacular headlines, like "NASA discovered a planet twice as big as Earth with a gas that is 'only produced by life'" and "Discovery... sparks huge excitement among astronomers.

NASA's announcement? It's early Webb observations "provided a possible detection of a molecule called dimethyl sulfide. On Earth, this is only produced by life." The bulk of the dimethyl sulfide in Earth's atmosphere is emitted from phytoplankton in marine environments.

The inference of dimethyl sulfide is less robust and requires further validation. "Upcoming Webb observations should be able to confirm if dimethyl sulfide is indeed present in the atmosphere of K2-18 b at significant levels," explained Nikku Madhusudhan, an astronomer at the University of Cambridge and lead author of the paper announcing these results.

While K2-18 b lies in the habitable zone, and is now known to harbor carbon-bearing molecules, this does not necessarily mean that the planet can support life.

But it's all a validation of the new discoveries being made possible by space telescopes — new and old. "The first insight into the atmospheric properties of this habitable-zone exoplanet came from observations with NASA's Hubble Space Telescope, which prompted further studies..." "This result was only possible because of the extended wavelength range and unprecedented sensitivity of Webb, which enabled robust detection of spectral features with just two transits," said Madhusudhan... "These results are the product of just two observations of K2-18 b, with many more on the way," explained team member Savvas Constantinou of the University of Cambridge. "This means our work here is but an early demonstration of what Webb can observe in habitable-zone exoplanets."

[...] The team now intends to conduct follow-up research with the telescope's MIRI (Mid-Infrared Instrument) spectrograph that they hope will further validate their findings and provide new insights into the environmental conditions on K2-18 b. "Our ultimate goal is the identification of life on a habitable exoplanet, which would transform our understanding of our place in the universe," concluded Madhusudhan. "Our findings are a promising step towards a deeper understanding of Hycean worlds in this quest."

Space

Russia Vetoes U.N. Resolution On Nuclear Weapons In Space (cnn.com) 162

This week Russia vetoed a UN resolution that proposed banning nuclear weapons in space, CNN reports.

But it all happened "amid U.S. intelligence-backed concerns that Moscow is trying to develop a nuclear device capable of destroying satellites." In February, President Joe Biden confirmed the US has intelligence that Russia is developing a nuclear anti-satellite capability. Three sources familiar with the intelligence subsequently told CNN the weapon could destroy satellites by creating a massive energy wave when detonated...

US Ambassador Linda Thomas-Greenfield said Wednesday's vote "marks a real missed opportunity to rebuild much-needed trust in existing arms control obligations." A US and Japan-drafted resolution had received cross-regional support from more than 60 member states. It intended to strengthen and uphold the global non-proliferation regime, including in outer space, and reaffirm the shared goal of maintaining outer space for peaceful purposes. It also called on UN member states not to develop nuclear weapons or other weapons of mass destruction designed to be placed in Earth's orbit....

Experts say this kind of weapon could have the potential to wipe out mega constellations of small satellites, like SpaceX's Starlink, which has been successfully used by Ukraine to counter Russian troops. This would almost certainly be "a last-ditch weapon" for Russia, the US official and other sources said — because it would do the same damage to whatever Russian satellites were also in the area.

The article notes that in March Russian President Vladimir Putin "told officials that space projects, including the setup of a nuclear power unit in space, should be a priority and receive proper financing."

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

Two Lifeforms Merge Into One Organism For First Time In a Billion Years (independent.co.uk) 75

"For the first time in at least a billion years, two lifeforms have merged into a single organism," reports the Independent: The process, called primary endosymbiosis, has only happened twice in the history of the Earth, with the first time giving rise to all complex life as we know it through mitochondria. The second time that it happened saw the emergence of plants. Now, an international team of scientists have observed the evolutionary event happening between a species of algae commonly found in the ocean and a bacterium...

The process involves the algae engulfing the bacterium and providing it with nutrients, energy and protection in return for functions that it could not previously perform — in this instance, the ability to "fix" nitrogen from the air. The algae then incorporates the bacterium as an internal organ called an organelle, which becomes vital to the host's ability to function.

The researchers from the U.S. and Japan who made the discovery said it will offer new insights into the process of evolution, while also holding the potential to fundamentally change agriculture. "This system is a new perspective on nitrogen fixation, and it might provide clues into how such an organelle could be engineered into crop plants," said Dr Coale.

Two papers detailing the research were published in the scientific journals Science and Cell.

Thanks to Slashdot reader fjo3 for sharing the news.
United States

New Rule Compels US Coal-Fired Power Plants To Capture Emissions - or Shut Down (theguardian.com) 91

Coal-fired power plants would be forced to capture smokestack emissions or shut down under a rule issued on Thursday by the Environmental Protection Agency (EPA). From a report: New limits on greenhouse gas emissions from fossil fuel-fired electric plants are the Biden administration's most ambitious effort yet to roll back planet-warming pollution from the power sector, the nation's second-largest contributor to the climate crisis. The rules are a key part of Joe Biden's pledge to eliminate carbon pollution from the electricity sector by 2035 and economy-wide by 2050.

The rule was among four separate measures targeting coal and natural gas plants that the EPA said would provide "regular certainty" to the power industry and encourage them to make investments to transition "to a clean energy economy." They also include requirements to reduce toxic wastewater pollutants from coal-fired plants and to safely manage so-called coal ash in unlined storage ponds. The new rules "reduce pollution from fossil fuel-fired power plants, protect communities from pollution and improve public health -- all while supporting the long-term, reliable supply of the electricity needed to power America forward," the EPA administrator, Michael Regan, told reporters at a White House briefing.

Earth

Vast DNA Tree of Life For Plants Revealed By Global Science Team 11

An international team of scientists used 1.8 billion letters of genetic code from more than 9,500 species covering almost 8,000 known flowering plant genera to create the most up-to-date understanding of the flowering plant tree of life. The research has been published in the journal Nature. Phys.Org reports: The major milestone for plant science, led by [Royal Botanic Gardens, Kew] and involving 138 organizations internationally, was built on 15 times more data than any comparable studies of the flowering plant tree of life. Among the species sequenced for this study, more than 800 have never had their DNA sequenced before. The sheer amount of data unlocked by this research, which would take a single computer 18 years to process, is a huge stride towards building a tree of life for all 330,000 known species of flowering plants -- a massive undertaking by Kew's Tree of Life Initiative.

The flowering plant tree of life, much like our own family tree, enables us to understand how different species are related to each other. The tree of life is uncovered by comparing DNA sequences between different species to identify changes (mutations) that accumulate over time like a molecular fossil record. Our understanding of the tree of life is improving rapidly in tandem with advances in DNA sequencing technology. For this study, new genomic techniques were developed to magnetically capture hundreds of genes and hundreds of thousands of letters of genetic code from every sample, orders of magnitude more than earlier methods. A key advantage of the team's approach is that it enables a wide diversity of plant material, old and new, to be sequenced, even when the DNA is badly damaged. The vast treasure troves of dried plant material in the world's herbarium collections, which comprise nearly 400 million scientific specimens of plants, can now be studied genetically.

[...] Across all 9,506 species sequenced, more than 3,400 came from material sourced from 163 herbaria in 48 countries. Additional material from plant collections around the world (e.g., DNA banks, seeds, living collections) have been vital for filling key knowledge gaps to shed new light on the history of flowering plant evolution. The team also benefited from publicly available data for more than 1,900 species, highlighting value of the open science approach to future genomic research. Flowering plants alone account for about 90% of all known plant life on land and are found virtually everywhere on the planet -- from the steamiest tropics to the rocky outcrops of the Antarctic Peninsula. [...] Utilizing 200 fossils, the authors scaled their tree of life to time, revealing how flowering plants evolved across geological time. They found that early flowering plants did indeed explode in diversity, giving rise to more than 80% of the major lineages that exist today shortly after their origin. However, this trend then declined to a steadier rate for the next 100 million years until another surge in diversification about 40 million years ago, coinciding with a global decline in temperatures. These new insights would have fascinated Darwin and will surely help today's scientists grappling with the challenges of understanding how and why species diversify.
A list of "remarkable species" included in the flowering plant tree of life is embedded below the article.

Looking ahead, the study's authors believe this data will aid future attempts to identify new species, refine plant classification, uncover new medicinal compounds, and conserve plants in the face of climate change and biodiversity loss.
Transportation

US Breaks Ground On Its First-Ever High-Speed Rail (popsci.com) 242

Construction has begun on a $12 billion high-speed rail project to connect Las Vegas and Los Angeles by the end of the decade. The project, backed by $3 billion in federal support, aims to reduce travel time to under two hours and significantly cut greenhouse gas emissions. Popular Science reports: Brightline expects its trains will depart every 40 minutes from a station outside of the Vegas strip and another one in the LA suburb of Rancho Cucamonga. When it's completed, the train will travel at 186 miles per hour, making it the fastest train in the U.S. and comparable to Japan's famous bullet trains. For context, Brightline's most recently completed train connecting parts of Florida is estimated to top out around 130 miles per hour. Both of those still fall far short of the speed achieved by the world fastest commuter train in Shanghai, which can reportedly reach a speed of 286 miles per hour. Still, the new train could complete the 218 mile trip between Sin City and a suburb of the City of Angels in just 2 hours and 10 minutes. That same trip would take about four hours by car, and that's without substantial traffic.

Once built, the trains will reportedly include onboard Wi-Fi, restrooms, and food and drinks available for purchase. Brightline hasn't provided an exact price for how much an individual train ticket will cost but has instead said they expect it to be roughly equivalent to the price of an airline flight. Brightline reportedly believes the train could attract 11 million one-way passengers annually once it's up and running. The U.S. Department of Transportation estimates the new train could cut back 400,000 tons of carbon dioxide per year and create 35,000 new jobs.
Department of Transportation Secretary Pete Buttigieg described the moment as a "major milestone in building the future of American rail." The ceremony symbolically took place on Earth Day. "Partnering with state leaders and Brightline West, we're writing a new chapter in our country's transportation story that includes thousands of union jobs, new connections to better economic opportunity, less congestion on the roads, and less pollution in the air," Buttigieg said in a statement.
NASA

NASA Officially Greenlights $3.35 Billion Mission To Saturn's Moon Titan (arstechnica.com) 70

NASA last week formally approved a $3.35 billion mission to explore Saturn's largest moon with a quadcopter drone. "Dragonfly is a spectacular science mission with broad community interest, and we are excited to take the next steps on this mission," said Nicky Fox, associate administrator of NASA's science mission directorate. "Exploring Titan will push the boundaries of what we can do with rotorcraft outside of Earth." The mission has a launch date of July 2028. Ars Technica reports: After reaching Titan, the eight-bladed rotorcraft lander will soar from place to place on Saturn's hazy moon, exploring environments rich in organic molecules, the building blocks of life. Dragonfly will be the first mobile robot explorer to land on any other planetary body besides the Moon and Mars, and only the second flying drone to explore another planet. NASA's Ingenuity helicopter on Mars was the first. Dragonfly will be more than 200 times as massive as Ingenuity and will operate six times farther from Earth.

Despite its distant position in the cold outer Solar System, Titan appears to be reminiscent of the ancient Earth. A shroud of orange haze envelops Saturn's largest moon, and Titan's surface is covered with sand dunes and methane lakes. Titan's frigid temperatures -- hovering near minus 290 degrees Fahrenheit (minus 179 degrees Celsius) -- mean water ice behaves like bedrock. NASA's Cassini spacecraft, which flew past Titan numerous times before its mission ended in 2017, discovered weather systems on the hazy moon. Observations from Cassini found evidence for hydrocarbon rains and winds that appear to generate waves in Titan's methane lakes. Clearly, Titan is an exotic world. Most of what scientists know about Titan comes from measurements collected by Cassini and the European Space Agency's Huygens probe, which Cassini released to land on Titan in 2005. Huygens returned the first pictures from Titan's surface, but it only transmitted data for 72 minutes.

Dragonfly will explore Titan for around three years, flying tens of kilometers about once per month to measure the prebiotic chemistry of Titan's surface, study its soupy atmosphere, and search for biosignatures that could be indications of life. The mission will visit more than 30 locations within Titan's equatorial region, according to a presentation by Elizabeth Turtle, Dragonfly's principal investigator at the Johns Hopkins University Applied Physics Laboratory. "The Dragonfly mission is an incredible opportunity to explore an ocean world in a way that we have never done before," Turtle said in a statement. "The team is dedicated and enthusiastic about accomplishing this unprecedented investigation of the complex carbon chemistry that exists on the surface of Titan and the innovative technology bringing this first-of-its-kind space mission to life."

NASA

Voyager 1 Resumes Sending Updates To Earth (nasa.gov) 54

quonset writes: Just over two weeks ago, NASA figured out why its Voyager 1 spacecraft stopped sending useful data. They suspected corrupted memory in its flight data system (FDS) was the culprit. Today, for the first time since November, Voyager 1 is sending useful data about its health and the status of its onboard systems back to NASA. How did NASA accomplish this feat of long distance repair? They broke up the code into smaller pieces and redistributed them throughout the memory.

From NASA: "... So they devised a plan to divide the affected code into sections and store those sections in different places in the FDS. To make this plan work, they also needed to adjust those code sections to ensure, for example, that they all still function as a whole. Any references to the location of that code in other parts of the FDS memory needed to be updated as well. The team started by singling out the code responsible for packaging the spacecraft's engineering data. They sent it to its new location in the FDS memory on April 18. A radio signal takes about 22 1/2 hours to reach Voyager 1, which is over 15 billion miles (24 billion kilometers) from Earth, and another 22 1/2 hours for a signal to come back to Earth. When the mission flight team heard back from the spacecraft on April 20, they saw that the modification worked: For the first time in five months, they have been able to check the health and status of the spacecraft. During the coming weeks, the team will relocate and adjust the other affected portions of the FDS software. These include the portions that will start returning science data.

Businesses

Gaming Giant Embracer Group Is Splitting Into Three Companies (theverge.com) 13

Jess Weatherbed reports via The Verge: Swedish gaming conglomerate Embracer Group announced plans on Monday to split itself into three distinct games and entertainment companies: Asmodee Group, Coffee Stain & Friends, and Middle-earth Enterprises & Friends. These will be separate, publicly listed companies, according to Embracer, which says the move will allow "each entity to better focus on their respective core strategies and offer more differentiated and distinct equity stories for existing and new shareholders." [...]

The three new companies will be broken down as follows:

- Middle-earth Enterprises & Friends: This company, which will be renamed from Embracer Group, is described as a "creative powerhouse in AAA game development and publishing" that will retain ownership of the Dead Island, Killing Floor, Kingdom Come Deliverance, Tomb Raider, and The Lord of the Rings IPs.
- Asmodee Group: a new arm dedicated to publishing and distributing tabletop games. The existing catalog includes established titles like Ticket to Ride, 7 Wonders, Azul, CATAN, Dobble, and Exploding Kittens. Asmodee is also developing licensed tabletop games based on The Lord of the Rings, Marvel, Game of Thrones, and Star Wars franchises. Embracer anticipates the spinoff and share listings will take place "within 12 months."
- Coffee Stain & Friends: described as a "diverse gaming entity" that will focus on indie, mid-market, and free-to-play games. Properties sitting under this new company include Deep Rock Galactic, Goat Simulator, Satisfactory, Wreckfest, Teardown, and Valheim. The share listings are projected to become available in 2025.

Earth

Europe Baked in 'Extreme Heat Stress' Pushing Temperatures To Record Highs (theguardian.com) 113

Scorching weather has baked Europe in more days of "extreme heat stress" than its scientists have ever seen. The Guardian: Heat-trapping pollutants that clog the atmosphere helped push temperatures in Europe last year to the highest or second-highest levels ever recorded, according to the EU's Earth-watching service Copernicus and the World Meteorological Organization (WMO). Europeans are suffering with unprecedented heat during the day and are stressed by uncomfortable warmth at night. The death rate from hot weather has risen 30% in Europe in two decades, the joint State of the Climate report from the two organisations found.

"The cost of climate action may seem high," said WMO secretary-general Celeste Saulo, "but the cost of inaction is much higher." The report found that temperatures across Europe were above average for 11 months of 2023, including the warmest September since records began. The hot and dry weather fuelled large fires that ravaged villages and spewed smoke that choked far-off cities. The blazes that firefighters battled were particularly fierce in drought-stricken southern countries such as Portugal, Spain and Italy. Greece was hit by the largest wildfire recorded in the EU, which burned 96,000 hectares of land, according to the report. Heavy rain also led to deadly floods. Europe was about 7% wetter in 2023 than the average over the last three decades, the report found, and one-third of its river network crossed the "high" flood threshold. One-sixth hit "severe" levels.

United States

Biden Marks Earth Day by Announcing $7 Billion in Solar Power Grants (time.com) 106

President Joe Biden travels to Triangle, Virginia, Monday to mark Earth Day, where he'll unveil $7 billion in grant funding for solar power under the Inflation Reduction Act and announce new steps to stand up his administration's American Climate Corps -- a program popular with youth climate groups. From a report: The announcements come days after the Biden administration made several significant conservation announcements, including barring oil drilling on nearly half of the national petroleum reserve in Alaska. Under the Environmental Protection Agency's Solar for All program, the administration will announce funding awards to states territories, tribal governments, municipalities and nonprofits "to develop long-lasting solar programs that are targeted towards the communities and people who need them most," EPA Deputy Administrator Janet McCabe told reporters. Per McCabe, the funding will enable nearly one million households in low-income and disadvantaged communities to benefit from solar power, saving more than $350 million in electric costs annually and more than $8 billion over the life of the program for overburdened households.
Power

What Happened After Amazon Electrified Its Delivery Fleet? (yahoo.com) 204

Bloomberg looks at America's biggest operator of private electrical vehicle charging infrastructure: Amazon. "In a little more than two years, Amazon has installed more than 17,000 chargers at about 120 warehouses around the U.S." — and had Rivian build 13,500 custom electric delivery vans. Amazon has a long way to go. The Seattle-based company says its operations emitted about 71 million metric tons of carbon dioxide equivalent in 2022, up by almost 40% since Jeff Bezos's 2019 vow that his company would eventually stop contributing to the emissions warming the planet. Many of Amazon's emissions come from activities — air freight, ocean shipping, construction and electronics manufacturing, to name a few — that lack a clear, carbon-free alternative, today or any time soon. The company has not made much progress on decarbonization of long-haul trucking, whose emissions tend to be concentrated in industrial and outlying areas rather than the big cities that served as the backdrop for Amazon's electric delivery vehicle rollout...

Another lesson Amazon learned is one the company isn't keen to talk about: Going green can be expensive, at least initially. Based on the type of chargers Amazon deploys — almost entirely midtier chargers called Level 2 in the industry — the hardware likely cost between $50 million and $90 million, according to Bloomberg estimates based on cost estimates supplied by the National Renewable Energy Laboratory. Factoring in costs beyond the plugs and related hardware — like digging through a parking lot to lay wires or set up electrical panels and cabinets — could double that sum. Amazon declined to comment on how much it spent on its EV charging push.
In addition to the expense of the chargers, electric vehicle-fleet operators are typically on the hook for utility upgrades. When companies request the sort of increases to electrical capacity that Amazon has — the Maple Valley warehouse has three megawatts of power for its chargers — they tend to pay for them, making the utility whole for work done on behalf of a single customer. Amazon says it pays upgrade costs as determined by utilities, but that in some locations the upgrades fit within the standard service power companies will handle out of their own pocket.

The article also includes this quote from Kellen Schefter, transportation director at the Edison Electric Institute trade group (which worked with Amazon on its electricity needs). "Amazon's scale matters. If Amazon can show that it meets their climate goals while also meeting their package-delivery goals, we can show this all actually works."
Earth

Startup is Building the World's Largest Ocean-Based Carbon Plant - and It's Scalable (cnn.com) 57

An anonymous reader shared this report from CNN: On a slice of the ocean front in west Singapore, a startup is building a plant to turn carbon dioxide from air and seawater into the same material as seashells, in a process that will also produce "green" hydrogen — a much-hyped clean fuel.

The cluster of low-slung buildings starting to take shape in Tuas will become the "world's largest" ocean-based carbon dioxide removal plant when completed later this year, according to Equatic, the startup behind it that was spun out of the University of California at Los Angeles. The idea is that the plant will pull water from the ocean, zap it with an electric current and run air through it to produce a series of chemical reactions to trap and store carbon dioxide as minerals, which can be put back in the sea or used on land... The $20 million facility will be fully operational by the end of the year and able to remove 3,650 metric tons of carbon dioxide annually, said Edward Sanders, chief operating officer of Equatic, which has partnered with Singapore's National Water Agency to construct the plant. That amount is equivalent to taking roughly 870 average passenger cars off the road. The ambition is to scale up to 100,000 metric tons of CO2 removal a year by the end of 2026, and from there to millions of metric tons over the next few decades, Sanders told CNN. The plant can be replicated pretty much anywhere, he said, stacked up in modules "like lego blocks...."

The upfront costs are high but the company says it plans to make money by selling carbon credits to polluters to offset their pollution, as well as selling the hydrogen produced during the process. Equatic has already signed a deal with Boeing to sell it 2,100 metric tons of hydrogen, which it plans to use to create green fuel, and to fund the removal of 62,000 metric tons of CO2.

There's other projects around the world attempting ocean-based carbon renewal, CNN notes. "Other projects include sprinkling iron particles into the ocean to stimulate CO2-absorbing phytoplankton, sinking seaweed into the depths to lock up carbon and spraying particles into marine clouds to reflect away some of the sun's energy." But carbon-removal projects are controversial, criticized for being expensive, unproven at scale and a distraction from policies to cut fossil fuels. And when they involve the oceans — complex ecosystems already under huge strain from global warming — criticisms can get even louder. There are "big knowledge gaps" when it comes to ocean geoengineering generally, said Jean-Pierre Gatusso, an ocean scientist at the Sorbonne University in France. "I am very concerned with the fact that science lags behind the industry," he told CNN.

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