Science

Evolution of interorganismal strigolactone biosynthesis in seed plants | Science (Fr, 17 Jan 2025)
Strigolactones (SLs) are methylbutenolide molecules derived from β-carotene through an intermediate carlactonoic acid (CLA). Canonical SLs act as signals to microbes and plants, whereas noncanonical SLs are primarily plant hormones. The cytochrome P450 ...
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Neuronal-ILC2 interactions regulate pancreatic glucagon and glucose homeostasis | Science (Fri, 17 Jan 2025)
The immune system shapes body metabolism, while interactions between peripheral neurons and immune cells control tissue homeostasis and immunity. However, whether peripheral neuroimmune interactions orchestrate endocrine system functions remains ...
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Distinct myeloid-derived suppressor cell populations in human glioblastoma | Science (Fri, 17 Jan 2025)
The role of glioma-associated myeloid cells in tumor growth and immune evasion remains poorly understood. We performed single-cell RNA sequencing of immune and tumor cells from 33 gliomas, identifying two distinct myeloid-derived suppressor cell (MDSC) ...
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Climate change may be driving spread of a deadly fungus from U.S. Southwest (Thu, 16 Jan 2025)
Valley fever has exploded since 2000. Scientists are trying to figure out why
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News at a glance: Oldest continuous ice core, formaldehyde’s risks, and building Africa’s science workforce (Thu, 16 Jan 2025)
The latest in science and policy
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“Identity politics” is economic policy | Science (Thu, 16 Jan 2025)
In the wake of the November 2024 US election, several commentators have suggested that the US Democratic Party abandon its commitment to so-called “identity politics,” which they identify as elitist, condescending, and divisive. They argue that rather ...
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Drought in a warmer, CO2-rich climate restricts grassland water use and soil water mixing | Science (Thu, 16 Jan 2025)
Soil water sustains terrestrial life, yet its fate is uncertain under a changing climate. We conducted a deuterium labeling experiment to determine whether elevated atmospheric carbon dioxide (CO2), warming, and drought impact soil water storage and ...
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Nonalloyed α-phase formamidinium lead triiodide solar cells through iodine intercalation | Science (Thu, 16 Jan 2025)
Formamidinium lead triiodide (FAPbI3) is considered the most promising composition for high-performing single-junction solar cells. However, nonalloyed α-FAPbI3 is metastable with respect to the photoinactive δ-phase. We have developed a kinetic ...
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Global increase in the occurrence and impact of multiyear droughts | Science (Thu, 16 Jan 2025)
Persistent multiyear drought (MYD) events pose a growing threat to nature and humans in a changing climate. We identified and inventoried global MYDs by detecting spatiotemporally contiguous climatic anomalies, showing that MYDs have become drier, hotter,...
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3D polycatenated architected materials | Science (Thu, 16 Jan 2025)
Architected materials derive their properties from the geometric arrangement of their internal structural elements. Their designs rely on continuous networks of members to control the global mechanical behavior of the bulk. In this study, we introduce a ...
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Mechanically interlocked two-dimensional polymers | Science (Thu, 16 Jan 2025)
Mechanical bonds arise between molecules that contain interlocked subunits, such as one macrocycle threaded through another. Within polymers, these linkages will confer distinctive mechanical properties and other emergent behaviors, but polymerizations ...
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In Other Journals | Science (Thu, 16 Jan 2025)
Editors’ selections from the current scientific literature
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In Science Journals | Science (Thu, 16 Jan 2025)
Highlights from the Science family of journals
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Forestry bill threatens the Amazon’s water cycle | Science (Thu, 16 Jan 2025)
In May 2024, Brazilian President Luiz Inácio Lula da Silva signed into law Bill No. 14.876, which removes silviculture from the list of potentially polluting activities, exempting it from the environmental license requirement that applies to most agricultural activities in Brazil (1) and amending the National Environmental Policy (Law No. 6,938/81) (2). The bill also exempts forestry from tax payments by waiving the Environmental Control and Monitoring Fee, encouraging the expansion of this cultivation in the Amazon (1, 2). Bill No. 14.876 should be revoked to prevent further disruptions to the Amazon ecosystem (3–7).
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Bolivian forests hold carbon storage potential | Science (Thu, 16 Jan 2025)
Bolivia’s vast forests, including ecosystems of global conservation interest such as the Amazon rainforest and the Chiquitano dry forest (1), are threatened by increasing deforestation (2) and fires (3). Government authorities have failed to recognize the ecosystem services that forests provide (4), especially carbon sequestration. Fortunately, a recent decision by the courts has given Bolivia the opportunity to reformulate its forest protection strategy, reduce greenhouse gas emissions, and sequester more carbon.
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Enact reforms to protect Bolivia’s forests from fire | Science (Thu, 16 Jan 2025)
HomeScienceVol. 387, No. 6731Enact reforms to protect Bolivia’s forests from fireBack To Vol. 387, No. 6731 Full accessLetter Share on Enact reforms to protect Bolivia’s forests from fireYifan He, Stasiek Czaplicki Cabezas [email protected], [...] , Oswaldo Maillard, Robert Müller, [...] , Alfredo Romero-Muñoz, Laurenz Feliciano Romero Pimentel, Alcides Vadillo, and Vincent Antoine Vos+5 authors …
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Rooting out racial prejudices | Science (Thu, 16 Jan 2025)
A data-driven portrait of racism exposes the persistent reality of racial biases
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The ancestral genome’s tale | Science (Thu, 16 Jan 2025)
Narratives that invoke ancient DNA must be crafted with care, argues an archaeologist
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Not-so-fragile matter | Science (Thu, 16 Jan 2025)
A three-dimensional chain has strain-dependent solid-like and liquid-like behaviors
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Myostatin’s flex on the reproductive hormone axis | Science (Thu, 16 Jan 2025)
A muscle hormone controls the mammalian reproductive system
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Navigating the complexity of touch | Science (Thu, 16 Jan 2025)
Precise cortical microstimulation improves tactile experience in brain–machine interfaces
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The growing threat of multiyear droughts | Science (Thu, 16 Jan 2025)
Understanding and monitoring ecological responses is important as droughts last longer
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Don’t pretend COVID-19 didn’t happen | Science (Thu, 16 Jan 2025)
Just over 5 years ago, on New Year’s Eve 2019, the World Health Organization (WHO) became aware of the first cases of pneumonia of unknown etiology in Wuhan, China. A massive global infectious disease storm was already brewing—one that would shut down ...
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AI could help develop cheaper, faster, and more effective snake antivenoms (Wed, 15 Jan 2025)
“It’s really this whole change from letting the animals’ immune system do the work to now being able to do it very intentionally on the computer.”
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Chinese firm’s faster, cheaper AI language model makes a splash (Wed, 15 Jan 2025)
DeepSeek’s open-source answer to ChatGPT is “a highly impressive display of research,” expert says
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Gene editor may have cured infant of a deadly metabolic disorder (Tue, 14 Jan 2025)
Result could be first success at stitching a curative gene into a chromosome’s “safe harbor,” reducing cancer and other risks
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Why the ‘Ferrari of viruses’ is surging through the Northern Hemisphere (Tue, 14 Jan 2025)
Norovirus, which causes explosive diarrhea and vomiting, may be on the rise because of an antibody-dodging variant and post–COVID-19 socializing
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In sign of rising tensions, University of Michigan ends partnership with Chinese campus (Mon, 13 Jan 2025)
Republicans in Congress had raised concerns about work with Shanghai Jiao Tong University
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Energy megaproject in Chile threatens the world’s largest telescopes (Fri, 10 Jan 2025)
Glare from proposed green hydrogen plant could degrade views of distant universe
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A panoramic view of cell population dynamics in mammalian aging | Science (Thu, 28 Nov 2024)
To elucidate aging-associated cellular population dynamics, we present PanSci, a single-cell transcriptome atlas profiling >20 million cells from 623 mouse tissues across different life stages, sexes, and genotypes. This comprehensive dataset reveals >...
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