Latest news with #Cartwright
Newsweek
4 days ago
- Science
- Newsweek
Mysterious Surface Changes on Jupiter's Moon Point to Something Deep Below
Based on facts, either observed and verified firsthand by the reporter, or reported and verified from knowledgeable sources. Newsweek AI is in beta. Translations may contain inaccuracies—please refer to the original content. The icy surface of Jupiter's moon Europa appears to be constantly changing, new data from the James Webb Space Telescope has revealed. This phenomena, the team explained, is heightened in so-called "chaos regions" where surface features like cracks, plains and ridges end up jumbled and ensnared together. "We think that the surface is fairly porous and warm enough in some areas to allow the ice to recrystallize rapidly," said paper author and geologist Richard Cartwright of Johns Hopkins University in a statement. The different rates of crystallization across the icy moon point to a complex mix of geological processes at play—and provide further evidence for Europa harboring a liquid ocean beneath its frozen surface. An artist's impression of Europa, with Jupiter in the background An artist's impression of Europa, with Jupiter in the background dottedhippo/iStock / Getty Images Plus Astronomers refer to what we would call ice as "water ice." This distinguishes it from other frozen molecules such as carbon dioxide in the form of "dry ice," for example. Here on Earth, water ice has a hexagonal crystalline structure that results from the hydrogen bonding at play between the water molecules. (This structure actually spreads out the molecules more than in liquid water, making ice less dense than water, explaining why ice floats.) On the surface of Europa, however, water ice is constantly bombarded by charged particles, disrupting the crystalline structure to form "amorphous ice" with a disordered layout. Scientists have long speculated that Europa's surface is covered by a very thin veneer of amorphous ice—only around a fiftieth of an inch thick—which shields crystalline ice beneath. In the new study, however, the researchers found evidence of crystalline ice both at depth but also on the surface of Europa, in particular in an area known as Tara Regio. "Also, in this same region—generally referred to as a chaos region—we see a lot of other unusual things," said Cartwright. These, he explained, includes "the best evidence for sodium chloride, like table salt, probably originating from its interior ocean. We also see some of the strongest evidence for carbon dioxide and hydrogen peroxide on Europa. The chemistry in this location is really strange and exciting." Map of water ice types on Europa Map of water ice types on Europa SwRI According to the researchers, this region of fractured surface materials hints at geological processes pushing up materials from below. "Our data showed strong indications that what we are seeing must be sourced from the interior, perhaps from a subsurface ocean nearly 20 miles beneath Europa's thick icy shell," said paper author and physicist Ujjwal Raut of the Southwest Research Institute in a statement. "When we see evidence of carbon dioxide at the surface, we think it must have come from an ocean below the surface. "The evidence for a liquid ocean underneath Europa's icy shell is mounting, which makes this so exciting as we continue to learn more." Do you have a tip on a science story that Newsweek should be covering? Do you have a question about Europa? Let us know via science@ Reference Cartwright, R. J., Hibbitts, C. A., Holler, B. J., Raut, U., Nordheim, T. A., Neveu, M., Protopapa, S., Glein, C. R., Leonard, E. J., Roth, L., Beddingfield, C. B., & Villanueva, G. L. (2025). JWST Reveals Spectral Tracers of Recent Surface Modification on Europa. The Planetary Science Journal, 6(5), 125.
Yahoo
23-05-2025
- Business
- Yahoo
Why TransUnion (TRU) Crashed Today
We recently published a list of . In this article, we are going to take a look at where TransUnion (NYSE:TRU) stands against other firms that are drenched in red today. Ten companies pulled back on Wednesday, booking hefty losses during the trading session, with investor sentiment weighed down by a flurry of government policies and dismal earnings performance in the last quarter of the year. Meanwhile, the Dow Jones fell by 1.91 percent, the S&P 500 declined by 1.61 percent, and the tech-heavy Nasdaq dropped 1.41 percent. In this article, let us take a look at the 10 companies that led a poor performance during the day and explore the reasons behind their drop. To come up with the list, we considered only the stocks with a $2 billion market capitalization and $5 million in trading volume. A side profile of a consumer within a store handing a credit card to a cashier, reflecting the debt collection services of the company. TransUnion (NYSE:TRU) TransUnion extended its losing streak for a third consecutive day on Wednesday, shedding 8.81 percent to end at $82.43 each as investors repositioned portfolios ahead of two investor conferences next week. In a statement, TransUnion (NYSE:TRU) said that its president and CEO, Chris Cartwright, would present at the Bernstein Strategic Decisions Conference on Wednesday, May 28. This will be followed by another conference on June 5, which will be attended by Cartwright and TransUnion (NYSE:TRU) Chief Finance Officer Todd Cello. A live webcast will be made available on the company's investor relations website during the same days, where investors will be waiting for updates on the company's plans and developments for the year. TransUnion (NYSE:TRU) is a global information and insights company with over 13,000 associates operating in more than 30 countries. In the first quarter of the year, net income attributable to the company more than doubled to $148 million from the $65 million registered in the same period last year, primarily due to a $56-million reduction of a previously established accrual for a lawsuit that was dismissed in the first quarter of 2025. Revenues increased by 7 percent to $1.1 billion. Overall, TRU ranks 5th on our list of firms that are drenched in red today. While we acknowledge the potential of TRU as an investment, our conviction lies in the belief that AI stocks hold greater promise for delivering higher returns and doing so within a shorter time frame. There is an AI stock that went up since the beginning of 2025, while popular AI stocks lost around 25%. If you are looking for an AI stock that is more promising than TRU but that trades at less than 5 times its earnings, check out our report about this . READ NEXT: 20 Best AI Stocks To Buy Now and 30 Best Stocks to Buy Now According to Billionaires. Disclosure: None. This article is originally published at Insider Monkey. Error in retrieving data Sign in to access your portfolio Error in retrieving data Error in retrieving data Error in retrieving data Error in retrieving data
Yahoo
22-05-2025
- Science
- Yahoo
When humpbacks get stuck in fishing gear, their friends stick around to help
Approaching two whales a few years ago, Rachel Cartwright and her research team noticed something strange. As the younger whale was caught in a fishing line, the adult of the pair started whipping his tail fluke against the water repeatedly. Eventually, the smaller whale caught on and started thrashing her tail too. It was as if the adult was showing the juvenile what to do. And gradually the fishing line that she had become entangled in started to come away. 'The research assistants named her Taylor, because she was trying to 'shake it off,'' says Cartwright, a behavioral ecologist at California State University Channel Islands in Camarillo. In a new study, Cartwright and a team of strandings specialists documented how a 'companion whale' tries to help when an individual humpback whale gets entangled in fishing gear. In a separate instance, Cartwright was studying humpback reproduction when her team came across a trapped two-year-old whale. An adult whale swam slowly next to her, putting his pectoral fin gently on top of hers or laying with her, snout to snout, at the surface. At one point, he appeared to try to protect her from tiger sharks. 'He was swimming behind, flapping them off with his fluke," she says. The second whale swam underneath, lifting the young female to the surface. 'It was quite clear that he wasn't attempting to mate with her,' says Cartwright, as males position themselves on top during mating. "To me, what's really interesting about this situation is that it's unrelated whales," she adds. On the suggestion of NOAA entanglement expert and co-author Ed Lyman, the team contacted Hawaiian and Alaskan strandings networks to find out how often this happens. When they looked over the data, 'we realized that this behavior is more common than we thought,' says Cartwright. Out of 414 accounts of entanglement from 2001 through 2023—54 in Hawaii and 260 in Alaska—'companion' whales responded in a helpful way 62 times. Olaf Meynecke, a research fellow at Griffith University in Australia, who wasn't involved in the study, has also seen this in the South Pacific Ocean. His team was trying to disentangle a young whale with a float wrapped around its fins. Two other whales stayed close by. One was beside the whale in trouble and another underneath. Meynecke felt like they were saying 'if you're not able to maintain buoyancy, and you start sinking, I will try and lift you up.' Meynecke has seen adults trying to help entangled calves, even if the mother is present. 'It can be four, five, six other adult whales who are clearly there because they want to support that distressed animal,' he says. But, in the study, more than half of the 62 incidents were between adults, so it's not just about looking after the young. Looking through historical records, the researchers realized this behavior had been seen before—particularly during whaling, which was banned in most countries in 1986. When a victim was captured, 'other whales would come in and sit right beside them and stay with them while the capture happened,' says Cartwright. This put the responding whales at risk, so the behavior likely became less common. 'If you're the kind of whale that helps other whales, you're going to get taken,' she says, 'so this trait would have become quite rare.' 'The behavior may be a form of affective empathy,' says Anna Moscrop, head of science policy at Whale and Dolphin Conservation. 'An individual recognizes an emotional state such as distress, without experiencing the stimuli themselves.' Cartwright thinks this might also be an example of behavioral plasticity—the whales are adapting to a changing world where entanglement is now a regular part of life. Meynecke wonders whether the reason we're seeing this more is not only because 'we've got more distressed whales in the ocean' but also because technology like drones makes it easier to find and document these behaviors. Entanglement—in mooring lines, nets, crab pots, and other discarded fishing gear—is an ever-growing threat. "Over 80 percent of whales will be entangled at some point in their lives, and up to 25 percent might be entangled every year but self-release," says Cartwright. Seeing whales desperately trying to help each other is 'absolutely horrible,' Meynecke says. 'These poor animals know exactly what's going on, and they just cannot do anything. It goes beyond just an individual. It's a highly stressful situation for a number of whales within the area who are communicating and trying to assist.' What's more, entanglement—a major cause of whale mortality—is preventable. 'The best way to protect marine mammals from fishing entanglements is to reduce the risk of contact between them and the gear,' Moscrop adds. One way of doing this is using fishing gear that minimizes the lines left in the water, which 'drastically reduces the chances of entanglement and saves whales.' This is something we can all play a part in. 'There are choices we make as consumers,' says Cartwright. 'There are lots of options to choose sustainably caught fish.' Incredible Animal Journeys is now streaming on Disney+.
National Geographic
22-05-2025
- Science
- National Geographic
When humpbacks get stuck in fishing gear, their friends stick around to help
Are whales altruistic? A new scientific paper and a video present a compelling case the answer is 'yes.' A humpback whale stays by the side of a whale entangled in fishing gear. He spent more than five hours by her side, swimming below her and raising her to the surface to breathe. Photograph By Dan Cesre, Taken during research activities conducted under NOAA NMFS permit # 22750. Approaching two whales a few years ago, Rachel Cartwright and her research team noticed something strange. As the younger whale was caught in a fishing line, the adult of the pair started whipping his tail fluke against the water repeatedly. Eventually, the smaller whale caught on and started thrashing her tail too. It was as if the adult was showing the juvenile what to do. And gradually the fishing line that she had become entangled in started to come away. 'The research assistants named her Taylor, because she was trying to 'shake it off,'' says Cartwright, a behavioral ecologist at California State University Channel Islands in Camarillo. In a new study, Cartwright and a team of strandings specialists documented how a 'companion whale' tries to help when an individual humpback whale gets entangled in fishing gear. In a separate instance, Cartwright was studying humpback reproduction when her team came across a trapped two-year-old whale. An adult whale swam slowly next to her, putting his pectoral fin gently on top of hers or laying with her, snout to snout, at the surface. At one point, he appeared to try to protect her from tiger sharks. 'He was swimming behind, flapping them off with his fluke," she says. The second whale swam underneath, lifting the young female to the surface. 'It was quite clear that he wasn't attempting to mate with her,' says Cartwright, as males position themselves on top during mating. "To me, what's really interesting about this situation is that it's unrelated whales," she adds. On the suggestion of NOAA entanglement expert and co-author Ed Lyman, the team contacted Hawaiian and Alaskan strandings networks to find out how often this happens. When they looked over the data, 'we realized that this behavior is more common than we thought,' says Cartwright. Out of 414 accounts of entanglement from 2001 through 2023—54 in Hawaii and 260 in Alaska—'companion' whales responded in a helpful way 62 times. Olaf Meynecke, a research fellow at Griffith University in Australia, who wasn't involved in the study, has also seen this in the South Pacific Ocean. His team was trying to disentangle a young whale with a float wrapped around its fins. Two other whales stayed close by. One was beside the whale in trouble and another underneath. Meynecke felt like they were saying 'if you're not able to maintain buoyancy, and you start sinking, I will try and lift you up.' Meynecke has seen adults trying to help entangled calves, even if the mother is present. 'It can be four, five, six other adult whales who are clearly there because they want to support that distressed animal,' he says. But, in the study, more than half of the 62 incidents were between adults, so it's not just about looking after the young. Why do whales protect other whales? Looking through historical records, the researchers realized this behavior had been seen before—particularly during whaling, which was banned in most countries in 1986. When a victim was captured, 'other whales would come in and sit right beside them and stay with them while the capture happened,' says Cartwright. This put the responding whales at risk, so the behavior likely became less common. 'If you're the kind of whale that helps other whales, you're going to get taken,' she says, 'so this trait would have become quite rare.' 'The behavior may be a form of affective empathy,' says Anna Moscrop, head of science policy at Whale and Dolphin Conservation. 'An individual recognizes an emotional state such as distress, without experiencing the stimuli themselves.' Cartwright thinks this might also be an example of behavioral plasticity—the whales are adapting to a changing world where entanglement is now a regular part of life. Meynecke wonders whether the reason we're seeing this more is not only because 'we've got more distressed whales in the ocean' but also because technology like drones makes it easier to find and document these behaviors. Keeping whales safe from gear Entanglement—in mooring lines, nets, crab pots, and other discarded fishing gear—is an ever-growing threat. "Over 80 percent of whales will be entangled at some point in their lives, and up to 25 percent might be entangled every year but self-release," says Cartwright. Seeing whales desperately trying to help each other is 'absolutely horrible,' Meynecke says. 'These poor animals know exactly what's going on, and they just cannot do anything. It goes beyond just an individual. It's a highly stressful situation for a number of whales within the area who are communicating and trying to assist.' What's more, entanglement—a major cause of whale mortality—is preventable. 'The best way to protect marine mammals from fishing entanglements is to reduce the risk of contact between them and the gear,' Moscrop adds. One way of doing this is using fishing gear that minimizes the lines left in the water, which 'drastically reduces the chances of entanglement and saves whales.' This is something we can all play a part in. 'There are choices we make as consumers,' says Cartwright. 'There are lots of options to choose sustainably caught fish.' Incredible Animal Journeys is now streaming on Disney+.
Yahoo
22-05-2025
- Business
- Yahoo
Why TransUnion (TRU) Crashed Today
We recently published a list of . In this article, we are going to take a look at where TransUnion (NYSE:TRU) stands against other firms that are drenched in red today. Ten companies pulled back on Wednesday, booking hefty losses during the trading session, with investor sentiment weighed down by a flurry of government policies and dismal earnings performance in the last quarter of the year. Meanwhile, the Dow Jones fell by 1.91 percent, the S&P 500 declined by 1.61 percent, and the tech-heavy Nasdaq dropped 1.41 percent. In this article, let us take a look at the 10 companies that led a poor performance during the day and explore the reasons behind their drop. To come up with the list, we considered only the stocks with a $2 billion market capitalization and $5 million in trading volume. A side profile of a consumer within a store handing a credit card to a cashier, reflecting the debt collection services of the company. TransUnion (NYSE:TRU) TransUnion extended its losing streak for a third consecutive day on Wednesday, shedding 8.81 percent to end at $82.43 each as investors repositioned portfolios ahead of two investor conferences next week. In a statement, TransUnion (NYSE:TRU) said that its president and CEO, Chris Cartwright, would present at the Bernstein Strategic Decisions Conference on Wednesday, May 28. This will be followed by another conference on June 5, which will be attended by Cartwright and TransUnion (NYSE:TRU) Chief Finance Officer Todd Cello. A live webcast will be made available on the company's investor relations website during the same days, where investors will be waiting for updates on the company's plans and developments for the year. TransUnion (NYSE:TRU) is a global information and insights company with over 13,000 associates operating in more than 30 countries. In the first quarter of the year, net income attributable to the company more than doubled to $148 million from the $65 million registered in the same period last year, primarily due to a $56-million reduction of a previously established accrual for a lawsuit that was dismissed in the first quarter of 2025. Revenues increased by 7 percent to $1.1 billion. Overall, TRU ranks 5th on our list of firms that are drenched in red today. While we acknowledge the potential of TRU as an investment, our conviction lies in the belief that AI stocks hold greater promise for delivering higher returns and doing so within a shorter time frame. There is an AI stock that went up since the beginning of 2025, while popular AI stocks lost around 25%. If you are looking for an AI stock that is more promising than TRU but that trades at less than 5 times its earnings, check out our report about this . READ NEXT: 20 Best AI Stocks To Buy Now and 30 Best Stocks to Buy Now According to Billionaires. Disclosure: None. This article is originally published at Insider Monkey. Sign in to access your portfolio
