Tag

Science Advances

All articles tagged with #science advances

science29 days ago•46 min saved

Hiroshima debris reveals a novel alloy forged by the blast

Researchers analyzing microscopic debris from Hiroshima Bay identified a previously unseen alloy consisting of iron, chromium, nickel, manganese, molybdenum, silicon, aluminum and other elements arranged in a complex cubic lattice. forged by the explosion’s extreme, rapid heating and cooling, these microdroplets act as tiny laboratories, preserving a record of conditions that existed for fractions of a second. The finding, published in Science Advances, broadens understanding of how extreme events can create novel materials and may shed light on related structures like quasicrystals.

via Yahoo|

#alloy #extreme-conditions #hiroshima-bombing

space1 month ago•103 min saved

Ancient space rock carries life's building blocks to Earth, study finds

Scientists analyzing the Hillsborough meteorite that crashed into a New Jersey home in 2024 found amino acids and other prebiotic molecules in a salt‑rich carbonaceous chondrite, suggesting the building blocks of life were present in a primitive protoplanet and may trace back to the early solar system's asteroid belt, with minerals compared to samples from Ryugu and Bennu to pinpoint its origin.

via Live Science|

#amino-acids #carbonaceous-chondrite #hillsborough-meteorite

science3 months ago•186 min saved

Sea cucumber tissue fragments defy death, hinting at true immortality

A study of the North Atlantic sea cucumber Psolus fabricii found severed tissue fragments that survived for more than three years in untreated seawater, healing and remaining biologically active without a mouth while absorbing nutrients. Researchers say these “zombie” tissues maintain cellular function without becoming a whole organism, revealing a novel model for tissue maintenance, wound healing, and aging—potentially offering alternatives to immortal cell lines like HeLa for research, though whether the tissues are truly immortal remains to be confirmed.

via CNN|

#aging-research #regeneration #science

space3 months ago•58 min saved

Ganymede’s hidden heat may power a late-forming magnetic dynamo

New Science Advances study suggests Jupiter’s moon Ganymede could have formed a metal core later than previously thought and still sustain a magnetic field via a warming-driven dynamo powered by protracted core formation, radioactive heating, and tidal forces. This challenges the idea that dynamos always originate early and cool over time, and implies Ganymede’s magnetism—potentially active today—arises from a “warm start” process that could influence how we think about magnetic fields on other worlds, including exoplanets.

via Live Science|

#dynamo #ganymede #jupiter

science7 months ago•10 min saved

Ancient giant fossil reveals extinct branch of life on early Earth

Scientists studying the 410-million-year-old Prototaxites fossil from Aberdeenshire say it belonged to a completely extinct lineage of life, offering new insight into ancient ecosystems and the organisms that once dominated early forests; the discovery, linked to the National Museums Scotland and published in Science Advances, illuminates a long-lost form of life no longer found on Earth.

via The Independent|

#archaeology #fossil #life

science-and-technology2 years ago•5 min saved

AI Study Challenges Uniqueness of Fingerprints

A study led by an undergraduate senior at Columbia University challenges the long-held belief that fingerprints are all unique, using an AI-based system to find similarities between fingerprints from different fingers of the same person. The study, published in Science Advances, suggests that traditional markers for fingerprint identification may not be as reliable as previously thought. While some experts believe the findings are not entirely new, the team behind the study is confident in the results and has open-sourced the AI code for others to check, emphasizing the potential impact of AI in discovering hidden features.

via CNN|

#ai #criminal-investigations #fingerprint-analysis