Latest news with #Sleiman
Yahoo
4 days ago
- Science
- Yahoo
UR researchers find similarities between the surfaces of Earth and Mars
ROCHESTER, N.Y. (WROC) — Researchers at the University of Rochester say some Martian soil looks like it's been shaped like we see on Earth's coldest climates — think the arctic. But there are a lot of things to ponder. 'That is a little bit where my research is heading towards, is trying to see is climate involved in these formations, or is it just a phenomenon that's occurring and we just see it in these certain locations on earth,' said JohnPaul Sleiman, a PhD Student at the University of Rochester. Sleiman is one of the researchers on the project, along with Assistant Professor of environmental science Rachel Glade. They looked at satellite images of nine craters on Mars and compared them to the arctic and mountain regions here on our home planet. 'In the winter, when soil freezes, it sort of poofs up perpendicular to the slope,' said Glade. 'We actually see this in Rochester. If you go out in the winter, sometimes the soil heaves… So, it's a common process in cold places in the winter, and then in the summer when it thaws, the soil sort of settles, and this can cause downhill motion of the soil.' Researchers are likening this wave-like pattern to paint dripping down a wall. The impact is one to three centimeters per year. 'So, it's very slow, not something that's easy for humans to observe, but added up over many, many years, it can result in the formation of these patterns,' said Glade. These researchers say that what they can discover without actually leaving the planet and using their tools on Mars' surface is awesome. 'Studying these similar features is interesting because we, one, learn how it's working on Earth, we learn about how it's working on another planet,' said Sleiman, 'and that tells us both about both systems.' Ultimately, the study is raising big questions about Mars' past — and potentially its habitability. Copyright 2025 Nexstar Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.
Yahoo
08-05-2025
- Science
- Yahoo
NASA Mars satellite uncovers markings 'like paint dripping down a wall' on Martian surface
Yahoo is using AI to generate takeaways from this article. This means the info may not always match what's in the article. Reporting mistakes helps us improve the experience. Yahoo is using AI to generate takeaways from this article. This means the info may not always match what's in the article. Reporting mistakes helps us improve the experience. Yahoo is using AI to generate takeaways from this article. This means the info may not always match what's in the article. Reporting mistakes helps us improve the experience. Generate Key Takeaways When you buy through links on our articles, Future and its syndication partners may earn a commission. Mars has wave-like soil patterns that match those found on Earth. This image, taken from the Mars Reconnaissance Orbiter, shows the patterns inside a Mars crater. | Credit: NASA/JPL-Caltech/UArizona High-resolution satellite images have revealed dripping paint-like patterns on Mars that match those found on Earth, according to a new study. The familiar soil patterns suggest that Mars and Earth were shaped by similar forces. On Earth, the patterns form on the slopes of cold, mountainous regions where soils freeze and thaw throughout the year. If Mars once had the same icy, wet conditions, then these patterns could be a good place to explore the role that liquid water may have had in shaping the Red Planet and its potential to harbor signs of life. "Understanding how these patterns form offers valuable insight into Mars' climate history, especially the potential for past freezing and thawing cycles, though more work is needed to tell if these features formed recently or long ago," study lead author JohnPaul Sleiman , a doctoral student in the department of Earth and environmental sciences at the University of Rochester in New York, said in a statement . "Ultimately, this research could help us identify signs of past or present environments on other planets that may support or limit potential life," Sleiman added. The researchers published their findings online March 26 in the journal Icarus . Related: NASA rover discovers out-of-place 'Skull' on Mars, and scientists are baffled On Earth, soil patterns like this are known as solifluction lobes . They form when a sheet of frozen ground partially thaws and loosens, causing soil to creep downhill. The effect creates wave-like patterns on the side of hills in cold regions. Mars is further away from the sun than Earth, and typically much colder, but the Martian lobes only occur at high latitudes. Some previous studies have suggested that Mars' high-latitude regions may have experienced freeze-thaw conditions in the planet's recent climate history, which would explain why it has similar lobes. However, there are many unanswered questions surrounding the Martian lobes, including why they appear to be significantly larger than those on Earth, according to the study. The wave-like soil patterns form in cold, mountainous regions on Earth. | Credit: Gerald Corsi via Getty Images By analyzing high-resolution satellite imagery of the Martian surface taken by the HiRISE camera aboard NASA's Mars Reconnaissance Orbiter, the research team saw that the wave-like landforms followed the same basic geometric pattern as those in Earth's Rocky Mountains, Arctic and other cold mountainous regions, according to the statement. RELATED STORIES —Life on Mars could survive — so long as you're one of these strange, hybrid lifeforms —Curiosity rover finds largest carbon chains on Mars from 3.7 billion-year-old rock —Scientists reveal signs of crucial life-sustaining process on Mars: 'I knew right away how important this discovery was' Study co-author Rachel Glade , an assistant professor in the department of Earth and environmental sciences at the University of Rochester, likened the landforms to patterns seen in fluids. These patterns "are large, slow-moving, granular examples of common patterns found in everyday fluids, like paint dripping down a wall," Glade said in the statement. The team also confirmed that the Martian lobes were larger than Earth's — around 2.6 times taller on average. To explain this, they proposed that Mars has taller lobes because its gravity is weaker, which allows waves of accumulating sediment to grow taller before collapsing, according to the study. The findings reinforce previous suspicions that Mars' lobes are — or were — linked to ground ice, with their patterns resembling what would be expected from fluid-like instabilities. However, the researchers couldn't be certain that liquid water was involved just from the satellite data. The authors suggested that future laboratory experiments could explore whether ice and liquid water are both required for the wave-like patterns to form. Mars quiz: Is your knowledge of the Red Planet out of this world?
Economy ME
06-05-2025
- Business
- Economy ME
Dubai real estate sets new record: April sales transactions surge 94 percent to $16.91 billion
Dubai's real estate sector recorded AED62.1 billion ($16.91 billion) in total sales transactions last month, the highest ever monthly total for the emirate. This marks a 94 percent year-on-year surge in value compared to April 2024, and a 54 percent rise in transaction volume, according to Dubai Land Department (DLD) data. This record-breaking performance underscores the city's thriving real estate sector, with growth witnessed across both primary and secondary markets. 'Dubai's real estate market continues to scale new heights, propelled by bold city planning, regulatory innovation, and investor trust. The sustained growth across both primary and secondary segments is resounding proof of its resilience and long-term appeal,' stated Cherif Sleiman, chief revenue officer at Property Finder. Primary segment drives surge According to the latest report by Property Finder, the primary property segment led the charge on Dubai real estate, with sales touching AED34.2 billion in value, a 124 percent increase from April 2024. This was fuelled by marquee transactions in destinations like Palm Jebel Ali and The Oasis by Emaar. Palm Jebel Ali and The Oasis by Emaar accounted for 19 percent and 13 percent of the total value, respectively, despite representing less than 2 percent and 4 percent of the total transaction volume of primary transactions, highlighting investor appetite for future-forward, branded communities. Secondary segment posts record AED28 billion Meanwhile, the secondary segment performed equally as well, with a record AED28 billion in sales value across more than 7,700 transactions, up 67 percent in value and 66 percent in volume from April 2024. While a landmark AED1.45 billion land transaction in DMCC-EZ2 for the upcoming Sobha Central development in Jebel Ali stood out, strong resale activity in key communities such as Palm Jumeirah, JVC and Dubai Marina also contributed significantly to overall real estate transaction value. 'The Dubai Land Department's recent initiative of introducing AI-enabled governance of real estate advertising will enhance transparency and credibility in real estate advertisements across key marketing platforms, a focus that we have always aligned with. Further supported by the strategic partnerships signed by DLD at the International Property Show, we are witnessing greater transparency, smarter regulation, and higher service standards across the board. These far-sighted initiatives will contribute to Dubai's growing status as one of the world's most investor-friendly real estate markets,' added Sleiman. Apartments dominate home searches Property Finder also revealed that apartment living continued to be the preferred choice across both the buyer and renter categories, with apartments accounting for nearly 78 percent of rental searches and 59 percent of purchase interest in April 2025. Studio apartments comprised 21 percent of all rental searches on Property Finder, but just 14 percent of buyer interest. This gap signals strong yield opportunities for investors in smaller units, where rental demand appears stronger than buyer interest. Meanwhile, two-bedroom apartments attracted 35 percent of buyer searches and 31 percent of rental demand. Read: Sharjah real estate market hits $234.6 million in Q1 2025, up 159.2 percent year-over-year Dubai real estate transactions hit AED142.7 billion in Q1 In its quarterly report, Property Finder revealed that Dubai's real estate market continued to rank among the top-performing markets globally, with Q1 2025 witnessing a significant surge in total sales transactions. The transaction volume reached 45,474, marking a 22 percent year-on-year increase, while the total value rose by 30 percent, hitting AED142.7 billion. The market maintained its positive momentum, with Q1 performance exceeding the quarterly average transactions for both volume and value in 2024. Notably, the transaction value in Q1 2025 was 9 percent higher than the average quarterly value recorded in 2024, underscoring the market's ongoing strength and investor confidence. Notably, Dubai's off-plan market continued to deliver outstanding performance, recording its highest first-quarter performance in a decade, with off-plan sales accounting for 56 percent of total transaction volume. The number of off-plan transactions reached 25,440, up from 20,557 in Q1 2024, reflecting a 24 percent year-on-year increase, driven by strong long-term confidence among medium – and long-term investors. In terms of value, the off-plan segment also witnessed remarkable growth, with a 24 percent increase year-on-year, reaching AED55.2 billion compared to AED44.5 billion in Q1 2024. This represented 39 percent of the total transaction value in Q1 2025, highlighting the continued attractiveness of Dubai's future development pipeline.
Arabian Business
06-05-2025
- Business
- Arabian Business
Dubai real estate: Property market hits all-time high with nearly $17bn April transactions
Dubai's property market achieved its highest-ever monthly total in April 2025, with transactions reaching AED62.1 billion, according to data released by Property Finder. The figures represent a 94 per cent year-on-year increase in value and a 54 per cent rise in transaction volume compared to April 2024, highlighting the continued momentum in Dubai's real estate sector across both primary and secondary markets. 'Dubai's real estate market continues to scale new heights, propelled by bold city planning, regulatory innovation, and investor trust. The sustained growth across both primary and secondary segments is resounding proof of its resilience and long-term appeal,' Cherif Sleiman, Chief Revenue Officer at Property Finder said. Dubai property market soars The secondary property segment recorded AED28 billion in sales across more than 7,700 transactions, marking increases of 67 per cent in value and 66 per cent in volume from April 2024. A notable transaction included a AED1.45 billion land deal in DMCC-EZ2 for the upcoming Sobha Central development in Jebel Ali. Strong resale activity was also reported in Palm Jumeirah, JVC, and Dubai Marina, which contributed substantially to the overall transaction value. The primary property segment led the market performance with sales reaching AED34.2 billion, representing a 124 per cent increase from April 2024. This growth was driven by significant transactions in developments, including Palm Jebel Ali and The Oasis by Emaar. These two developments accounted for 19 per cent and 13 per cent of the total primary market value respectively, despite representing less than 2 per cent and 4 per cent of the total transaction volume, indicating investor interest in premium developments. Apartments continue to dominate home searches among both buyers and renters, accounting for 59 per cent of purchase searches and 78 per cent of rental searches in April 2025. Studio apartments represented 21 per cent of all rental searches but only 14 per cent of buyer interest, suggesting potential yield opportunities for investors in smaller units where rental demand exceeds buyer interest. Two-bedroom apartments proved popular with both segments, attracting 35 per cent of buyer searches and 31 per cent of rental interest. 'The Dubai Land Department's recent initiative of introducing AI-enabled governance of real estate advertising will enhance transparency and credibility in real estate advertisements across key marketing platforms, a focus that we have always aligned with. Further supported by the strategic partnerships signed by DLD at the International Property Show, we are witnessing greater transparency, smarter regulation, and higher service standards across the board. These far-sighted initiatives will contribute to Dubai's growing status as one of the world's most investor-friendly real estate markets,' Sleiman added.
Zawya
05-05-2025
- Business
- Zawya
Mohammad Sleiman appointed CEO of Basatne Group MENA to spearhead regional circular economy leadership
United Arab Emirates: Reinforcing its strategic roadmap for sustainable growth in the Middle East, Basatne Group has appointed Mohammad Sleiman as Chief Executive Officer of Basatne Group MENA. This pivotal leadership transition marks a new chapter for the Group as it consolidates its regional footprint across operations, circular technology, data analytics, and fintech. Under Sleiman's leadership, Basatne MENA will drive integrated growth, accelerate innovation, and advance the Group's commitment to building a greener, tech-enabled future for the region. With the UAE and wider GCC governments advancing national strategies focused on green technology and circular economy innovation, Basatne's leadership alignment reflects a proactive approach to capitalizing on regional momentum. Sleiman's appointment positions the Group at the forefront of this transformation. As the Founder and former CEO of Cartlow, Sleiman has already made a measurable impact on the circular economy landscape. Under his direction, Cartlow enabled the recirculation of millions of devices to both consumers and businesses, helping partners recover over AED 1 billion in resale value while preventing more than 30,000 tons of potential e-waste, the equivalent of offsetting 57,000 tons of CO₂ emissions. His pioneering work in integrating fintech-powered trade-in models, AI-led diagnostics, and reverse logistics has set a new benchmark for sustainability-driven innovation in the MENA region. His vision closely aligns with the UAE's Net Zero by 2050 and Saudi Arabia's Vision 2030 ESG goals. 'Mohammad has been instrumental in shaping the circular economy narrative in the region,' said Ammar Aboulnasr, Founder and Global CEO of Basatne Group. 'His ability to innovate, execute, and scale has not only created tangible impact through Cartlow, but has also laid the foundation for broader transformation. His leadership is exactly what we need to unify our operations and lead the charge toward a more sustainable regional economy.' Commenting on his appointment, Mohammad Sleiman said: 'I'm honored to step into this role at such a pivotal time, as circularity transitions from concept to concrete action. This next chapter is about scaling execution. We're bringing together a dynamic ecosystem of circular tech, fintech, and data analytics to solve real-world challenges. I'm excited to work with our teams and partners to shape a future where circularity drives both economic value and measurable environmental impact.' This appointment comes as regional governments double down on climate action, sustainable infrastructure, and digital transformation. With the UAE targeting Net Zero by 2050 and Saudi Arabia advancing its Vision 2030 objectives, Basatne Group's integrated approach is strongly aligned with national ambitions to build greener, more resilient economies. About Basatne Basatne is a global leader in circular technology, sustainable trade solutions, and reverse logistics, dedicated to reshaping the future of commerce. Through proprietary platforms, advanced logistics, and strategic partnerships, Basatne extends product lifecycles, reduces environmental impact, and optimizes global supply chains. Operating across six continents, Basatne is committed to delivering smarter, more responsible trade solutions while driving innovation in the circular economy.
