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Category: habitats

Dynamic duo of bacteria could change Mars dust into versatile building material for first human colonists

Since humanity’s first steps on the moon, the aspiration to extend human civilization beyond Earth has been a central objective of international space agencies, targeting long-term extraterrestrial habitation. Among the celestial bodies within reach, Mars is considered our next home.

The red planet, with its stark landscapes and tantalizing similarities to Earth, beckons as the frontier of human exploration and settlement. But establishing a permanent foothold on Mars remains one of humanity’s boldest dreams and the most formidable scientific and engineering challenge.

The red planet, once draped in a thick atmosphere, has undergone dramatic transformation over billions of years. Its protective blanket vanished, leaving behind an environment nearly unrecognizable to terrestrial life.

NASA, SpaceX launch US–European satellite to monitor Earth’s oceans

About the size of a full-size pickup truck, a newly launched satellite by NASA and its partners will provide ocean and atmospheric information to improve hurricane forecasts, help protect infrastructure, and benefit commercial activities, such as shipping.

The Sentinel-6B satellite lifted off aboard a SpaceX Falcon 9 rocket from Launch Complex 4 East at Vandenberg Space Force Base in central California at 9:21 p.m. PST on Nov. 16. Contact between the satellite and a ground station in northern Canada occurred about 1 hour and 30 minutes later at 10:54 p.m. All systems are functioning normally.

“Understanding tidal patterns down to the inch is critical in protecting how we use our oceans every day on Earth,” said Nicky Fox, associate administrator, Science Mission Directorate at NASA Headquarters in Washington. “Sentinal-6B will build upon the legacy of Sentinel-6 Michael Freilich by making sea level measurements that improve forecasts used by communities, businesses, and operations across the country. It also will support a safer reentry for our astronauts returning home, including crew from Artemis Moon missions.”

The Impact Of Tech On Geopolitics: Why Business Needs To Rethink Risk

#risk #tech #business #geopolitical

Geopolitical tensions and kinetic conflicts can impact both physical security and supply chain stability, as well as overall economic stability. Evolving and often contradictory regulatory environments can create compliance challenges across different jurisdictions. Operating on the home turf of potentially hostile nation-states can increase insider risk, as employees may choose or be compelled to misuse their privileged access to appropriate and exfiltrate sensitive information from the organization. There are also risks that remain agnostic of jurisdiction, such as cyber threats, whether perpetrated by criminals, state-backed actors, or even hacktivists.

AI-generated wildlife videos generate confusion and threaten conservation efforts

A video is circulating on social media in which a leopard enters the backyard of a house where a child is playing, and a cat confronts the leopard and scares it away, protecting the child. The video has garnered over a million “likes” and has been shared more than 15,000 times.

Another series of videos shows bears or deer jumping on a trampoline in a backyard. In another, three raccoons float down a river riding on three crocodiles. All of these videos are created by , and thanks to their high degree of realism, appear to be real.

Given the proliferation of these types of videos and the lack of research on this topic in , researchers from the GESBIO group at the University of Cordoba—José Guerrero, Francisco Sánchez, Antonio Carpio, Rocío Serrano, and Tamara Murillo—have spotlighted this issue, analyzing the different consequences that these AI-generated videos have on the knowledge and conservation of wild species.

Global initiative advances next-generation light sensors based on emerging materials

A global team of experts from academia and industry has joined forces in a landmark Consensus Statement on next-generation photodetectors based on emerging light-responsive materials, which could accelerate innovative applications across health care, smart homes, agriculture, and manufacturing.

Professor Vincenzo Pecunia, head of the Sustainable Optoelectronics Research Group (www.sfu.ca/see/soe), has led this global initiative culminating in the publication of a Consensus Statement in Nature Photonics. Featured on the journal’s cover, the paper provides a unified framework for characterizing, reporting, and benchmarking emerging light-sensing technologies. These guidelines could catalyze the adoption of such sensors across a wide range of applications, enhancing quality of life, productivity, and sustainability.

Light sensors, also known as photodetectors, are devices that convert light into electrical signals. They are at the heart of countless smart devices and represent a valued at over $30 billion, reflecting both their ubiquity and economic significance. Emerging photodetectors—including those based on organic semiconductors, perovskites, , and two-dimensional materials—could take this field even further by enabling ultrathin, flexible, stretchable, and lightweight sensors. These next-generation photodetectors promise lower costs, enhanced performance, and unique functionalities, paving the way for applications that were previously impossible.

Caretaker AI & Genus Loci

Meet the caretaker AIs: guardians of planets, habitats, and civilizations. What happens when machines become the spirit and soul of the worlds they protect?

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New air filter could turn every building into a carbon sink

Despite decades of warnings and increasing efforts to fight climate change, global carbon emissions are still rising. While cutting emissions from the source is a common way we address this problem, another crucial strategy is actively removing carbon from the atmosphere. Current centralized DAC (direct-air-capture) plants are expensive and take up a lot of land, so scientists have developed a carbon dioxide-catching air filter that can fit into existing ventilation systems of homes and offices around the world.

The researchers describe their filter in a paper published in Science Advances. It is made of tiny carbon threads known as nanofibers that are coated with a polyethylenimine polymer. This combination makes an incredibly effective carbon sponge that captures carbon dioxide molecules from the air, even at low concentrations. The filter can also be cleaned by solar heating or low-energy electricity methods.

The team put their new carbon filter through its paces to see how well it worked. First, they checked how much it could soak up carbon by placing it in a flow system and passing air with a known concentration of carbon dioxide through it. The filter proved highly selective and fast, capturing the molecules and letting the rest of the air pass through.

Coastal gray wolves display unexpected hunting behavior with unknown ecosystem impact

On Prince of Wales Island, Alaska, gray wolves are doing something unexpected: hunting sea otters. This surprising dietary shift appears to have notable implications for both ecosystems and wolf health, but little is known about how the predators are capturing marine prey. Patrick Bailey, a Ph.D. candidate at the University of Rhode Island, is researching these understudied behaviors of gray wolves.

Using a creative mix of approaches—including wolf teeth samples and trail cameras—Bailey is exploring how coastal are using , what this suggests about their behavioral and hunting adaptations, and how these adaptations differentiate them from other .

On land, gray wolves are known to play a vital ecological role because of their ability to regulate food webs. “We don’t have a clear understanding of the connections between water and land , but we suspect that they are much more prevalent than previously understood,” says Bailey, a member of Sarah Kienle’s CEAL Lab in the Department of Natural Resources Science. “Since wolves can alter land ecosystems so dramatically, it is possible that we will see similar patterns in aquatic habitats.”

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