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Categories: Biology: Microbiology, Space: Exploration
Published The lonely giant: Milky Way-sized galaxy lacking galactic neighbors
(via sciencedaily.com) Long ago in a galaxy far, far away, fewer galaxies were born than expected -- and that could create new questions for galaxy physics, according to a new study.
Published Amyloid pathology transmission in lab mice and historic medical treatments
(via sciencedaily.com) A study has confirmed that some vials of a hormone used in discontinued medical treatments contained seeds of a protein implicated in Alzheimer's disease, and are able to seed amyloid pathology in mice.
Published Soil compound fights chronic wasting disease
(via sciencedaily.com) A major compound in soil organic matter degrades chronic wasting disease prions and decreases infectivity in mice, according to a new study.
Published Eyes of Creutzfeldt-Jakob disease patients show evidence of prions
(via sciencedaily.com) By the time symptoms of sporadic Creutzfeldt-Jakob disease (sCJD) are typically discovered, death is looming and inevitable. In a new study, researchers report finding tell-tale evidence of the condition's infectious agent in the eyes of deceased sCJD patients, making the eye a potential source for both early CJD detection and prevention of disease transmission.
Published Not all prion strains interfere with each other
(via sciencedaily.com) The first example of prion strains that replicate independently in vitro and in vivo suggests that strain diversity may be greater than previously thought, according to a new study.
Published Astronomers find first compelling evidence for a moon outside our solar system
(via sciencedaily.com) On the hunt for distant worlds, researchers have identified an exomoon candidate around the transiting exoplanet Kepler-1625b that indicates the presence of a previously unknown gas-giant moon.
Published Possible molecular pathway for neurodegeneration in prion diseases
(via sciencedaily.com) A new study has shed light on the mechanisms underlying the progression of prion diseases and identified a potential target for treatment.
Published Satellites more at risk from fast solar wind than a major space storm
(via sciencedaily.com) Satellites are more likely to be at risk from high-speed solar wind than a major geomagnetic storm according to a new study.
Published Satellite measurements of the Earth's magnetosphere promise better space weather forecasts
(via sciencedaily.com) A Japan-based research team led by Kanazawa University equipped the Arase satellite with sensors to study the convoluted interactions between high-energy particles in the inner magnetosphere and the Earth's electric and magnetic field. They have collected their first set of data from the satellite and from ground-based sensors, which they will soon analyze. Their approach promises to provide better predictions of harmful bursts of high-energy particles from the magnetosphere.
Published Cross-species prion adaptation depends on prion replication environment
(via sciencedaily.com) A hamster prion that replicated under conditions of low RNA levels in mouse brain material resulted in altered disease features when readapted and transmitted back to hamsters, according to new research.
Published Last of universe's missing ordinary matter
(via sciencedaily.com) Researchers have helped to find the last reservoir of ordinary matter hiding in the universe.
Published Options to optimize profit in broadband satellite constellations
(via sciencedaily.com) Several large telecommunications companies have proposed plans to provide global broadband services by launching hundreds and even thousands of satellites into orbit. Although broadband for everyone sounds like a great idea, it also carries great financial risk, resulting in bankruptcy for some who've tried it. Recent research suggests a more cost-effective strategy using regional coverage and staged deployment.
Published Researchers shine a light on more accurate way to estimate climate change
(via sciencedaily.com) By using satellite data from different major land-based ecosystems around the globe, researchers have found that the photosynthesis glow is the same across all vegetation, no matter the location. This first-of-its-kind global analysis could have significance in providing more accurate data for scientists working to model carbon cycle and eventually help better project climate change.
Published Frequency-stable laser systems for space
(via sciencedaily.com) For the first time a frequency reference based on molecular iodine was successfully demonstrated in space! What sounds a bit like science fiction is an important step towards laser interferometric distance measurements between satellites as well as for future global navigation satellite systems based on optical technologies. The frequency reference tests were carried out on May 13 on board the sounding rocket TEXUS54.
Published May the forest be with you: GEDI moves toward launch to space station
(via sciencedaily.com) GEDI (pronounced like 'Jedi,' of Star Wars fame) is a first-of-its-kind laser instrument designed to map the world's forests in 3-D from space. These measurements will help fill in critical gaps in scientists' understanding of how much carbon is stored in the world's forests, the potential for ecosystems to absorb rising concentrations of carbon dioxide in Earth's atmosphere, and the impact of forest changes on biodiversity.
Published No chronic wasting disease transmissibility in macaques
(via sciencedaily.com) Chronic wasting disease (CWD) did not cross the species barrier to infect cynomolgus macaque monkeys during a lengthy investigation exploring risks to humans.
Published Transmission risk of familial human prion diseases to mice
(via sciencedaily.com) Familial human prion diseases are passed within families and are associated with 34 known prion protein mutations. To determine whether three of the unstudied mutations are transmissible, scientists exposed research mice to brain samples from three people who died from a familial prion disease. After observing the mice for about two years, they found two of the mutations, Y226X and G131V, are transmissible.
Published Weather satellites aid search and rescue capabilities
(via sciencedaily.com) Original source The same satellites that identify severe weather can help save you from it. NOAA's GOES series satellites carry a payload supported by NASA's Search and Rescue (SAR) office, which researches and develops technologies to help first responders locate people in distress worldwide, whether from a plane crash, a boating accident or other emergencies.
Published Laser-ranged satellite measurement now accurately reflects Earth's tidal perturbations
(via sciencedaily.com) Original source Tides on Earth have a far-reaching influence, including disturbing satellites' measurements by affecting their motion. The LAser RElativity Satellite (LARES), is the best ever relevant test particle to move in the Earth's gravitational field. In a new study, LARES proves its efficiency for high-precision probing of General Relativity and fundamental physics.
Published Soil characteristics may be related to chronic wasting disease persistence, study finds
(via sciencedaily.com) Deer infected with chronic wasting disease are doomed to a slow and certain death, eventually wasting away as they lose the ability to eat and drink. There is no cure and no vaccine, and the number of infected deer continues to rise every year. But scientists recently published a new study that could help explain the movement of the disease across the landscape.