194 articles from THURSDAY 22.2.2024

Odysseus moon landing live updates: first US lunar attempt in 52 years

Carrying Nasa instruments, Intuitive Machines Odysseus lander aims to be the first US landing on the moon for over 50 yearsThe uncrewed Nova-C lander built by Intuitive Machines launched on 15 February. Its scheduled touchdown near the moon’s south pole would be the first lunar landing of a US spacecraft since Nasa’s final Apollo mission in December 1972, and the first by a non-government...

Black carbon sensor could fill massive monitoring gaps

Black carbon is the most dangerous air pollutant you've never heard of. Its two main sources, diesel exhaust and wood smoke from wildfires and household heating, produce ultrafine air particles that are up to 25 times more of a health hazard per unit compared to other types of particulate matter.

Irrecoverable carbon in the mountains: Embracing the opportunity of agroforestry

Over 29% of global irrecoverable carbon, which once gone is not likely to recover in any reasonable timeframe according to scientific literature, is stored in mountains. This biomass, representing irreplaceable ecosystems, biodiversity, and globally significant ecosystem services, is under threat everywhere by demographic and environmental pressures, as Earth's rapidly changing global climate is...

What does a physicist see when looking at the NFT market?

The market for collectible digital assets, or non-fungible tokens, is an interesting example of a physical system with a large scale of complexity, non-trivial dynamics, and an original logic of financial transactions. At the Institute of Nuclear Physics of the Polish Academy of Sciences (IFJ PAN) in Cracow, its global statistical features have been analyzed more extensively.

Neurobiology: Examining how bats distinguish different sounds

Seba's short-tailed bat (Carollia perspicillata) lives in the subtropical and tropical forests of Central and South America, where it mostly feeds on pepper fruit. The animals spend their days in groups of 10 to 100 individuals in hollow trunks and rocky caverns, and at night they go foraging together. They communicate using sounds that create distinct ambient noise in the colony—like the babble...

Study shows orchid family emerged in northern hemisphere and thrived alongside dinosaurs for 20 million years

In a new study published in New Phytologist, scientists at the Royal Botanic Gardens, Kew, along with partners in Latin America, Asia and Australia, present an updated family tree of orchids, tracing their origins to the northern hemisphere some 85 million years ago. Not only does the study shed new light on their complex and fascinating evolutionary history, but the study's authors hope their...

Stronger storms free more nutrients from mud flats, finds researcher

If storms become stronger in the future due to climate change, more nitrogen may be released from the bottom of coastal seas. This is shown by the research of marine biogeochemist Dunia Rios-Yunes at NIOZ in Yerseke. Rios-Yunes will defend her Ph.D. thesis today at the University of Utrecht. "The dynamics of nutrients in deltas and estuaries have been a bit of a blind spot for marine science so...

Live imaging reveals key cell dynamics in 3D organ formation in Drosophila

Animal development requires successive changes in cell and tissue structures. To form complex 3D organs, cell shapes must adapt to support tissue morphogenesis. However, our understanding of how cellular structure changes are coupled with dynamic tissue morphogenesis is limited, largely due to reliance on studies of fixed tissues and cultured cells. Real-time observation of cell shape changes...

Two truths and a lie about immigration

Congressional gridlock over border security talks, controversial proposals to restrict asylum and a looming impeachment trial for the U.S. Homeland Security Secretary Alejandro Mayorkas paint a stark picture of a nation deeply divided on immigration.

Video: The latest science on tipping points in Antarctica

Ice loss from Antarctica has increased over the recent decades. The ice sheet in this remote continent covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth. Even small changes in ocean conditions in the future could lead to long-lasting or even irreversible changes—with important implications for global sea-level rise.

Research on the Tirlán grain pool shows the carbon footprint is one of lowest in the world

New research from Teagasc on the Tirlán grain pool shows that Irish grain has one of the lowest carbon footprints in the world. The research, unveiled at the Tirlán Quality Grain Awards this week, is the first of its kind using a Life Cycle Assessment (LCA) methodology specifically developed for Irish grain on a wide range of commercially grown Irish cereals. Accounting for straw incorporation,...