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Physics: Acoustics and Ultrasound
Published

When graphene speaks, scientists can now listen      (via sciencedaily.com) 

Brothers working in a lab discover that sound can be used to analyze the properties of laser-induced graphene in real time.

Space: Exploration
Published

Hubble finds a black hole igniting star formation in a dwarf galaxy      (via sciencedaily.com) 

Often portrayed as destructive monsters that hold light captive, black holes take on a less villainous role in the latest research from NASA's Hubble Space Telescope. A black hole at the heart of the dwarf galaxy Henize 2-10 is creating stars rather than gobbling them up. The black hole is apparently contributing to the firestorm of new star formation taking place in the galaxy. The dwarf galaxy lies 30 million light-years away, in the southern constellation Pyxis.

Mathematics: Puzzles
Published

A new approach to a $1 million mathematical enigma      (via sciencedaily.com) 

Numbers like pi, e and phi often turn up in unexpected places in science and mathematics. Pascal's triangle and the Fibonacci sequence also seem inexplicably widespread in nature. Then there's the Riemann zeta function, a deceptively straightforward function that has perplexed mathematicians since the 19th century. The most famous quandary, the Riemann hypothesis, is perhaps the greatest unsolved question in mathematics, with the Clay Mathematics Institute offering a $1 million prize for a correct proof.

Geoscience: Volcanoes
Published

2020 volcanic eruption leads to hours-long thunderstorm      (via sciencedaily.com) 

A study discusses how advances in global lightning detection have provided novel ways to characterize explosive volcanism.

Paleontology: Dinosaurs
Published

Muscular study provides new information about how the largest dinosaurs moved and evolved      (via sciencedaily.com) 

New research has revealed how giant 50-ton sauropod dinosaurs, like Diplodocus, evolved from much smaller ancestors, like the wolf-sized Thecodontosaurus.

Space: The Solar System
Published

Internal ocean in small Saturn moon uncovered      (via sciencedaily.com) 

A scientist recently set out to prove that the tiny, innermost moon of Saturn was a frozen inert satellite and instead discovered compelling evidence that Mimas has a liquid internal ocean. In the waning days of NASA's Cassini mission, the spacecraft identified a curious libration, or oscillation, in the moon's rotation, which often points to a geologically active body able to support an internal ocean.

Energy: Alternative Fuels Physics: Acoustics and Ultrasound
Published

Owl wing design reduces aircraft, wind turbine noise pollution      (via sciencedaily.com) 

Researchers used the characteristics of owl wings to inform airfoil design and significantly reduce trailing-edge noise. The team used noise calculation and analysis software to conduct a series of detailed theoretical studies of simplified airfoils with characteristics reminiscent of owl wings. They applied their findings to suppress the noise of rotating machinery. Improving the flow conditions around the trailing edge and optimizing the shape of the edge suppressed the noise.

Space: The Solar System
Published

Newly discovered carbon may yield clues to ancient Mars      (via sciencedaily.com) 

NASA's Curiosity rover landed on Mars on Aug. 6, 2012, and since then has roamed Gale Crater taking samples and sending the results back home for researchers to interpret. Analysis of carbon isotopes in sediment samples taken from half a dozen exposed locations, including an exposed cliff, leave researchers with three plausible explanations for the carbon's origin -- cosmic dust, ultraviolet degradation of carbon dioxide, or ultraviolet degradation of biologically produced methane.

Mathematics: Statistics
Published

Enhanced statistical models will aid conservation of killer whales and other species      (via sciencedaily.com) 

Retrieving an accurate picture of what a tagged animal does as it journeys through its environment requires statistical analysis, especially when it comes to animal movement, and the methods statisticians use are always evolving to make full use of the large and complex data sets that are available. A recent study by researchers at the Institute for the Oceans and Fisheries (IOF) and the UBC department of statistics has taken us a step closer to understanding the behaviours of northern resident killer whales by improving statistical tools useful for identifying animal behaviours that can't be observed directly.

Geoscience: Landslides Geoscience: Volcanoes
Published

Powerful volcanic blast not the cause for 2018 Indonesian island collapse      (via sciencedaily.com) 

The dramatic collapse of Indonesia's Anak Krakatau volcano in December 2018 resulted from long-term destabilising processes, and was not triggered by any distinct changes in the magmatic system that could have been detected by current monitoring techniques, new research has found.

Space: Exploration
Published

Being in space destroys more red blood cells      (via sciencedaily.com)     Original source 

A world-first study has revealed how space travel can cause lower red blood cell counts, known as space anemia. Analysis of 14 astronauts showed their bodies destroyed 54 percent more red blood cells in space than they normally would on Earth, according to a new study.

Geoscience: Severe Weather
Published

Past eight years: Warmest since modern recordkeeping began      (via sciencedaily.com) 

Earth's global average surface temperature in 2021 tied with 2018 as the sixth warmest on record, according to independent analyses done by NASA and NOAA. Collectively, the past eight years are the warmest years since modern recordkeeping began in 1880.

Geoscience: Environmental Issues
Published

Copper-based chemicals may be contributing to ozone depletion      (via sciencedaily.com) 

As Earth's ozone layer recovers from past emissions of now-banned CFCs and halons, other chemicals are emerging as major causes of stratospheric ozone depletion. Atmospheric scientists have been searching for the sources of about one-third of the major threats, methyl bromide and methyl chloride. New research shows that copper-based compounds in common use generate these compounds when interacting with soil and seawater, with sunlight boosting production by a factor of 10.

Space: The Solar System
Published

Martian meteorite’s organic materials origin not biological, formed by geochemical interactions between water and rock      (via sciencedaily.com) 

Organic molecules found in a meteorite that hurtled to Earth from Mars were synthesized during interactions between water and rocks that occurred on the Red Planet about 4 billion years ago, according to new analysis.

Space: Exploration
Published

New insights into seasons on a planet outside our solar system      (via sciencedaily.com) 

Imagine being in a place where the winds are so strong that they move at the speed of sound. That's just one aspect of the atmosphere on XO-3b, one of a class of exoplanets (planets outside our solar system), known as hot Jupiters. The eccentric orbit of the planet also leads to seasonal variations hundreds of times stronger than what we experience on Earth.

Space: The Solar System
Published

New explanation for Moon’s half-century magnetic mystery      (via sciencedaily.com) 

A new study reveals how the diminutive Moon could have been an occasional magnetic powerhouse early in its history, a question that has confounded researchers since NASA's Apollo program began in the 1960s.

Space: The Solar System
Published

'Slushy' magma ocean led to formation of the Moon’s crust      (via sciencedaily.com) 

Scientists have shown how the freezing of a 'slushy' ocean of magma may be responsible for the composition of the Moon's crust.

Space: The Solar System
Published

Oxygen ions in Jupiter's innermost radiation belts      (via sciencedaily.com) 

Researchers find high-energy oxygen and sulfur ions in Jupiter's inner radiation belts -- and a previously unknown ion source.

Space: Exploration Space: The Solar System
Published

Rugby ball-shaped exoplanet discovered      (via sciencedaily.com) 

With the help of the CHEOPS space telescope, an international team was able to detect the deformation of an exoplanet for the first time. Due to strong tidal forces, the appearance of the planet WASP-103b resembles a rugby ball rather than a sphere.

Space: Structures and Features
Published

New treasure trove of globular clusters holds clues about galaxy evolution      (via sciencedaily.com) 

Using observations of Centaurus A, a nearby elliptical galaxy, obtained with the Gaia space telescope and ground-based instruments under the PISCeS survey, a team of astronomers presents an unprecedented number of globular cluster candidates in the outer regions of the galaxy. The findings provide astronomers with an even more detailed picture of galactic architecture and history of collisions and mergers.