An exoplanet more than eight times the size of Earth and potentially habitable has been discovered by scientists. Exoplanet K2-18 b was detected by NASA’s James Webb Space Telescope and piqued scientists’ interest after data suggested it may be covered in an ocean and have a hydrogen-rich atmosphere that could support life. Scientists are also encouraged by a hint of the detection of the molecule dimethyl sulphide (DMS). On Earth, DMS is only produced by microbial life, but the team has yet to confirm the detection and search for evidence of biological activity. The groundbreaking discovery of K2-18 b may see the exoplanet come under the unique classification of a “Hycean” planet – ones which are candidates for life thanks to their hydrogen-rich atmospheres and water cover. The amount of methane and carbon dioxide combined with the shortage of ammonia suggests there may be a water ocean underneath a hydrogen-rich atmosphere in K2-18 b. K2-18 b lies within the constellation of Leo and orbits a dwarf star called K2-18. It lies around 120 light years away from Earth and is within the habitable zone. However, scientists added that this does not necessarily mean it can support life. Nikku Madhusudhan, an astronomer at the University of Cambridge and lead author of the paper, explained: “Our findings underscore the importance of considering diverse habitable environments in the search for life elsewhere. “Traditionally, the search for life on exoplanets has focused primarily on smaller rocky planets, but the larger Hycean worlds are significantly more conducive to atmospheric observations.” Sign up to our free Indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

Researchers have invented a new battery that they claim could have profound implications for the future of energy storage and renewable technologies. The lithium-based redox-flow battery, developed by a team at the University of Cincinnati, could prove crucial for wind and solar operations, where large-scale batteries are needed to store energy during times of overproduction and release it when production drops off. “Energy generation and energy consumption is always mismatched,” said Jimmy Jiang, who led the research at the University of Cincinnati. “That’s why it’s important to have a device that can store that energy temporarily and release it when it’s needed.” The novel design removes the membrane that separates the positive and negative sides of the battery, which is one of the most expensive parts of this type of battery and has previously hindered development. The membrane-free battery exhibited high voltage and energy density that could potentially meet the demands of large-scale green energy operations at an economically viable cost for the first time. “This design significantly decreases material costs,” said Soumalya Sinha, a visiting professor at the University of Cincinnati who was involved in the research. “We’re trying to achieve the same performance at a cheaper cost.” The team has submitted patent applications for the design, which Dr Jiang said will herald a “battery revolution” within the next 20 years. “I am confident about that,” he said. “There is a lot of intense research going into pushing the boundaries of battery performance.” The research was detailed in a paper, titled ‘Development of high-voltage and high-energy membrane-free nonaqueous lithium-based organic redox flow batteries’, published in the journal Nature Communications. Read More Volcano discovery could power electric cars for decades, scientists say

Artificial intelligence is using gallons upon gallons of water. Microsoft alone used more than 2,500 Olympic-sized swimming pools of water in its data centres last year. The latest numbers are leading to yet more questions about the sustainability and environmental dangers of the growth of artificial intelligence and related technology. Artificial intelligence requires vast computing resources, undertaking deeply complex calculations on behalf of people around the world. AI systems tend to be run in the cloud rather than on individual people’s computers, meaning that companies running them must operate vast server farms to deal with the queries of their users. Those server farms in turn need to pump in water to cool themselves down, because of the heat generated by those computers. That has long been a concern for environmentalists, but the sharp growth in artificial intelligence has led to even more use. Microsoft’s water consumption rose 34 per cent between 2021 and 2022, according to its latest environmental report, highlighted by the Associated Press. It was up to almost 1.7 billion gallons. Not all of that is from artificial intelligence. But Shaolei Ren, a researcher at the University of California, Riverside working to better understand the environmental impact of AI told the AP that the “majority of the growth” is because of the technology. Google also said that its water use had increased by 20 per cent over the same period. That varied across its different data centres, which are based in different parts of the US. For each 5 to 50 prompts, or questions, put to ChatGPT, it uses 500 millilitres of water, according to a paper that will be published by Professor Ren and his team later this year. Many technology companies have expressed concerns about their own water use, and how to minimise any negative effects of their data centres. The environmental concerns can be especially pressing because the use of water can be focused in particular areas around a data centre, meaning that the damage may not be spread. Google said last year for instance that “Wherever we use water, we are committed to doing so responsibly”. That includes analysing where water is being used and how much stress it might put on the surrounding area, for instance. Read More AI can help generate synthetic viruses and spark pandemics, warns ex-Google executive China’s ‘government-approved’ AI chatbot says Taiwan invasion likely Google launches AI to go to meetings for you

A new study has revealed that black holes could be lurking much closer to Earth than anticipated. A black hole in space is when "gravity pulls so much that even light can not get out," NASA explains. "The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying." Due to no light being present, they are invisible. Only special tools can pick up on them. There are said to be around 10 million to 1 billion mass black holes in the Milky Way, according to Science Alert. However, astrologers only know of about 20 of them. Now, a recent study has revealed that they could be a lot closer to Earth than previously thought after investigating the Hyades cluster, "a group of stars located 150 light-years away". In a statement, astrophysicist Stefano Torniamenti of the University of Padua explained: "Our simulations can only simultaneously match the mass and size of the Hyades if some black holes are present at the centre of the cluster today (or until recently). The Hyades with hundreds of stars is said to be approximately 625 million years old. Due to its packed environment, "higher rates of collisions and mergers" are expected. At 153 light-years away, it is considered the closest star cluster to Earth. Researchers were able to observe two or three black holes in the Hyades, which are either still present or ejected less than 150 million years ago and hovering around the outskirts. "This observation helps us understand how the presence of black holes affects the evolution of star clusters and how star clusters in turn contribute to gravitational wave sources," Professor Mark Gieles of the University of Barcelona said. Sign up for our free Indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

Scientists say they have discovered the largest lithium deposit in the world inside an extinct volcano in the United States, capable of meeting global battery demand for decades. Volcanologists and geologists reported evidence of the McDermitt caldera on the border of Nevada and Oregon containing up to 120 million tonnes of lithium, holding the potential to disrupt the price and supply dynamics of lithium globally. The ancient supervolcano exploded around 16 million years ago, forming the rare metal inside its volcanic rock. Lithium ion batteries are used to power everything from smartphones to electric vehicles, however the vast amounts of lithium required to produce them has led to a “lithium rush”, according to the researchers. Current supply forecasts suggest roughly 1 million metric tons of lithium will be needed to meet global demand by 2040 – an eight-fold increase from the total global production last year. Calculations from researchers estimate that the McDermitt caldera could contain up to 120 million metric tons of lithium, making it 12-times larger than the amount of lithium in the salt flats in Bolivia, which were previously considered the largest lithium deposit on Earth. “Developing a sustainable and diverse supply chain to meet lower-carbon energy and national security goals requires mining the highest-grade domestic lithium resources with the lowest waste:ore strip ratios to minimise both the volume of material extracted from the Earth,”the researchers noted in a study, published in Science Advances. “Volcano sedimentary lithium resources have the potential to meet this requirement, as they tend to be shallow, high-tonnage deposits with low waste:ore strip ratios.” Mining could begin as early as 2026, according to geologists at Lithium Americas Corporation, who made the discovery alongside GNS Science and Oregon State University. However, the site for a proposed mine on the Nevada side of the caldera has already drawn protests from environmental groups, as well as two area tribes who claim it would be built atop sacred land. Responding to the latest discovery, Tesla boss Elon Musk said the deposit will only be economically significant to the electric car industry if it can be refined in an efficient way. “Lithium ore is quite common throughout the world. The limiting factor is lithium refining,” Mr Musk posted on X, formerly known as Twitter, on Sunday. “Same goes for the cathode, which is primarily iron (medium range cars) or nickel (long range) and the anode, which is carbon. Refining matters more than ore.” Read More Battery breakthroughs are about to trigger a transport revolution Former Alibaba chair Daniel Zhang steps down as head of cloud division How Google reshaped the world – and is about to do it all over again Update your iPhone immediately

Intelsat SA, the world’s biggest geostationary satellite operator, is making a series of bets on companies that focus

A new study into the Earth beneath our feet has discovered that an ancient ocean floor structure could be wrapped around the planet's core which could be taller that Mount Everest in some areas. A brand new high-resolution mapping of the core has uncovered things that scientists previously didn't know according to a study that was first published in April. The discovery found that a thin but dense layer sits at around 2,900 kilometers below the surface at the Core Mantle Boundary where rocks meet the molten outer core of the planet. Geologist Samantha Hansen from the University of Alabama is quoted in the study saying: "Seismic investigations, such as ours, provide the highest resolution imaging of the interior structure of our planet, and we are finding that this structure is vastly more complicated than once thought." She adds: "Our research provides important connections between shallow and deep Earth structure and the overall processes driving our planet.” Hansen and her team conducted the research from 15 different stations in Antarctica by using seismic waves created by Earthquakes to create a map of what the inside of the planet looks like. The team identified the unexpected energy within seconds of the boundary-reflected wave from the seismic data. The findings show that although the layer is very thin it does spread for many, many kilometers and has been called the ultra-low velocity zone (ULVZs) due to its strong wave speed reductions. Due to the properties of the ULVZs the experts believe that the layer could vary dramatically in height. Geophysicist Edward Garnero from Arizona State University adds: "The material's thickness varies from a few kilometers to [tens] of kilometers. This suggests we are seeing mountains on the core, in some places up to five times taller than Mt. Everest." These underground mountains could play a significant role in how heat escapes from the Earth's core and power magnetic fields and volcanic eruptions. The team's studies suggest that the layer could encase all of the core but further research will have to be carried out to determine if that is the case. Sign up to our free Indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

A new study into the Earth beneath our feet has discovered that an ancient ocean floor structure could be wrapped around the planet's core which could be taller that Mount Everest in some areas. A brand new high-resolution mapping of the core has uncovered things that scientists previously didn't know according to a study that was first published in April. The discovery found that a thin but dense layer sits at around 2,900 kilometers below the surface at the Core Mantle Boundary where rocks meet the molten outer core of the planet. Geologist Samantha Hansen from the University of Alabama is quoted in the study saying: "Seismic investigations, such as ours, provide the highest resolution imaging of the interior structure of our planet, and we are finding that this structure is vastly more complicated than once thought." She adds: "Our research provides important connections between shallow and deep Earth structure and the overall processes driving our planet.” Hansen and her team conducted the research from 15 different stations in Antarctica by using seismic waves created by Earthquakes to create a map of what the inside of the planet looks like. The team identified the unexpected energy within seconds of the boundary-reflected wave from the seismic data. The findings show that although the layer is very thin it does spread for many, many kilometers and has been called the ultra-low velocity zone (ULVZs) due to its strong wave speed reductions. Due to the properties of the ULVZs the experts believe that the layer could vary dramatically in height. Geophysicist Edward Garnero from Arizona State University adds: "The material's thickness varies from a few kilometers to [tens] of kilometers. This suggests we are seeing mountains on the core, in some places up to five times taller than Mt. Everest." These underground mountains could play a significant role in how heat escapes from the Earth's core and power magnetic fields and volcanic eruptions. The team's studies suggest that the layer could encase all of the core but further research will have to be carried out to determine if that is the case. Sign up to our free Indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

The US automobile industry faces some of the highest supply-chain risks, due to geopolitical factors and sourcing of

To block microwave radiation, all you need is a simple screen.

Scientists have grown human kidneys in pigs, for the very first time. Researchers at the Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences and Wuyi University created human-pig chimeric embryos containing a combination of human and pig cells. When they transferred into 13 surrogate pig mothers, they developed kidneys that contained mostly human cells at a rate of 50 to 60 per cent, giving hope for potential transplants in the future. “Rat organs have been produced in mice, and mouse organs have been produced in rats, but previous attempts to grow human organs in pigs have not succeeded,” said the senior author Liangxue Lai. “Our approach improves the integration of human cells into recipient tissues and allows us to grow human organs in pigs.” The kidneys were not entirely human as they included vasculature and nerves made mostly from pig cells, meaning they could not be used for transplantation in their current form, but it is still a pretty impressive step. And apart from the kidneys, the embryos were dominated by pig cells, with very few human cells in the brain or central nervous system. Making brains using human and pig cells is very controversial for ethical reasons, so there are tight regulations for this kind of research. Meanwhile, pig cells tend to outcompete human cells during development, so previous experiments have created embryos that are almost entirely pig. The latest work, published in Cell Stem Cell, overcame this by genetically engineering a single-cell pig embryo so that it lacked two genes needed for kidney development. This created a gap within the embryo that could be filled by human cells. “We found that if you create a niche in the pig embryo, then the human cells naturally go into these spaces,” said Prof Zhen Dai of Guangzhou Institutes of Biomedicine and Health, another senior author. The scientists said that being able to incubate a fully human kidney inside a pig would be likely to take many years. “We would probably need to engineer the pigs in a much more complex way and that also brings some additional challenges,” said Miguel Esteban, also of the Guangzhou institute and a senior author. A central challenge would be to allow human nerves and vasculature to develop within the target organ without nerve cells developing in the central nervous system that could lead to a humanised brain. “Even theoretically it’s not clear how you’d do that,” said Ilic. Sign up to our free Indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

Scientists in Israel have created a model of a human embryo from stem cells, without using sperm, eggs or a womb. A team at Israel's Weizmann Institute of Science made the model, which resembles an embryo at day 14, when it acquires internal structures but before it lays down the foundations for body organs, and the work was published in the journal Nature. But the scientists involved said it would take a long time yet to create an embryo from scratch. Team leader Jacob Hanna said the team took stem cells derived from adult human skin cells, as well as others cultured in the lab, then reverted the cells to an early state.They then manipulated them to make a model of an embryo, rather than an actual or synthetic one. "The question is, when does an embryo model become considered an embryo? When that happens, we know the regulations. At the moment we are really, really far off from that point," Hanna said. However, they said the work could open the door to new ways to test the effect of drugs on pregnancies, better understand miscarriages and genetic diseases, and maybe grow transplant tissues and organs. "They are not identical. There are differences from human embryos, but still, this is the first time, if you open an atlas or a textbook, you can say - yeah I can really see the similarity between them," said Hanna. "In about 1 percent of the aggregates we can see that the cells start differentiating correctly, migrating and sorting themselves into the correct structure, and the farthest we could get is day 14 in human embryo development," he said. Their next goal, Hanna said, is to advance to day 21 and also reach a threshold of a 50 per cent success rate. Magdalena Żernicka-Goetz, a professor of development and stem cells at the University of Cambridge, said the study joins six other similar human embryo-like models published from teams around the world this year, including from her lab. "None of these models fully recapitulate natural human development but each adds to ways in which many aspects of human development can now be studied experimentally," she said. Sign up to our free Indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.