Preserved presolar silicate grains found in Ryugu samples
A large international team of space scientists and geochemists has found preserved presolar silicate grains in surface samples collected from the Ryugu asteroid by the Japanese space probe Hayabusa2 in 2018 and 2019 and returned to Earth in 2020. In.....»»
Explore a digitized collection of doomed Everest climber’s letters home
Collection includes three letters found on Mallory's body in 1999, preserved for 75 years. Enlarge / The final letter from George Mallory from Camp I, Mount Everest, to his wife Ruth Mallory, May 27, 1924. (credit: The Master and.....»»
War never changes: A Fallout fan’s spoiler-laden review of the new TV series
The show preserved the themes, archetypes, chronology, and more for the games. Enlarge / The nukes went off in 2077 in Fallout's universe. The show tells us more about this event than we've learned from the games before. (credit:.....»»
Research team resolves decades-long problem in microscopy
When viewing biological samples with a microscope, the light beam is disturbed if the lens of the objective is in a different medium than the sample. For example, when looking at a watery sample with a lens surrounded by air, the light rays bend more.....»»
NASA needs a new approach for its challenging Mars Sample Return mission
NASA is seeking new ideas for its Mars Sample Return mission after admitting that its previous plan to bring samples from Mars back to Earth was too ambitious......»»
NASA says it needs better ideas on how to return samples from Mars
The Jet Propulsion Laboratory is losing its grip on managing NASA's next flagship mission. Enlarge / NASA's existing plan for Mars Sample Return involves a large lander the size of a two-car garage, two helicopters, a two-stage b.....»»
NASA is seeking a faster, cheaper way to bring Mars samples to Earth
NASA's plan to bring samples from Mars back to Earth is on hold until there's a faster, cheaper way, space agency officials said Monday......»»
If we want to visit more asteroids, we need to let the spacecraft think for themselves
Missions to asteroids have been on a tear recently. Visits by Rosetta, Osirix-REX, and Hayabusa2 have all visited small bodies and, in some cases, successfully returned samples to the Earth. But as humanity starts reaching out to asteroids, it will r.....»»
What four decades of canned salmon reveal about marine food webs
Alaskan waters are a critical fishery for salmon. Complex marine food webs underlie and sustain this fishery, and scientists want to know how climate change is reshaping them. But finding samples from the past isn't easy......»»
Pacific rock samples offer glimpse of active Earth 2.5 billion years ago
In Earth science, small details can help explain massive events. Rita Parai, an assistant professor of Earth, environmental and planetary sciences in Arts & Sciences at Washington University in St. Louis, uses precision equipment to measure trace lev.....»»
Archaeologists illuminate ancient culinary practices using chemical biomarkers
Ceramic pots endure the corrosive effects of thousands of years, and organic remains preserved inside the pores can shed light on the culture, values, diets, and daily life of societies. This research is achieved with the help of biomarkers......»»
Stingray sand "sculpture" in South Africa may be oldest example of humans creating an image of another creature
South Africa's Cape south coast offers many hints about how our human ancestors lived some 35,000 to 400,000 years ago during the Pleistocene epoch. These clues are captured in the dunes they once traversed, today cemented and preserved in a rock typ.....»»
New single-cell analysis tech incorporates advanced fiber optics directly into microfluidic chips
Droplet microfluidics has revolutionized single-cell analysis, crucial for genomics, drug discovery, and diagnostics, by partitioning samples into nanoliter droplets for detailed cellular analysis. Yet, its broader adoption is hindered by the complex.....»»
Genetic secrets from 4,000-year-old teeth illuminate the impact of changing human diets over the centuries
Researchers at Trinity College Dublin have recovered remarkably preserved microbiomes from two teeth dating back 4,000 years, found in an Irish limestone cave. Genetic analyses of these microbiomes reveal major changes in the oral microenvironment fr.....»»
Sniffing out bacteria: Team develops a novel approach for rapid bacterial species identification
Do you ever wonder how researchers identify bacterial infections? Traditionally, they collect samples from the infected site, grow the bacteria in a lab, and analyze them using a method called MALDI-ToF-MS. Although accurate, this method is time-cons.....»»
Saturn"s moon Enceladus top target for ESA
A fresh, icy crust hides a deep, enigmatic ocean. Plumes of water burst through cracks in the ice, shooting into space. An intrepid lander collects samples and analyzes them for hints of life......»»
Tests showed high levels of E. coli at Dallas" White Rock Lake after Plano sewage spill
Samples taken from White Rock Lake showed elevated levels of E. coli after 1.5 million gallons of raw sewage spilled into water from Plano, according to a memorandum from the city of Dallas......»»
Non-culturable Legionella identified with sequencing
Legionnaires' disease (LD), a rare and severe type of pneumonia, is a respiratory infection caused by species of Legionella bacteria. One of the most accurate ways to diagnose LD is to perform culture on samples from a patient's lower respiratory tra.....»»
The most prevalent malware behaviors and techniques
An analysis of 100,000+ Windows malware samples has revealed the most prevalent techniques used by malware developers to successfully evade defenses, escalate privileges, execute the malware, and assure its persistence. Malware tactics and techniques.....»»
Advancing soybean yield through high-throughput UAV phenotyping and dynamic modeling
Soybeans, valued for their use as both oilseeds and grains, encounter yield limitations compared to crops like maize and rice, emphasizing the necessity for developing higher-yielding varieties......»»
Paper offers a mathematical approach to modeling a random walker moving across a random landscape
Tiny particles like pollen grains move constantly, pushed and pulled by environmental forces. To study this motion, physicists use a "random walk" model—a system in which every step is determined by a random process. Random walks are useful for stu.....»»