Tag

Composition

All articles tagged with #composition

science2 years ago•2 min saved

Unexpected Discoveries: Surprising Analysis of Asteroid Samples Amazes Scientists

Scientists analyzing the samples of the Bennu asteroid brought back to Earth by NASA have been surprised by the high levels of magnesium, sodium, and phosphate found in the samples' skin, a composition rarely seen in meteorites. Further analysis is needed, including accessing the heart of the material still inside the sample return canister. The samples collected so far, including a large rock that jammed the spacecraft's collection mechanism, are proving to be baffling and intriguing for scientists.

via BGR|

#bennu-asteroid #composition #nasa

space-science2 years ago•3 min saved

Unveiling the Enigmatic Interior of Dwarf Planet Eris

Scientists have gained a better understanding of the internal structure and composition of the dwarf planet Eris, which is similar in size to Pluto. Research based on its orbital relationship with its moon Dysnomia suggests that Eris has a rocky interior beneath an icy shell. Unlike Pluto, Eris is thought to have experienced enough heat in its history to melt, causing the rock to sink to the center. Eris has a higher concentration of rock and a lower ice content compared to Pluto, making it more massive. The new findings highlight the uniqueness of each dwarf planet and caution against inferring too much from what is known about Pluto.

via Reuters|

#composition #dwarf-planet #eris

space-science2 years ago•3 min saved

Unveiling the Enigmatic Interior of Dwarf Planet Eris

Scientists have gained a better understanding of the mysterious dwarf planet Eris, which is similar in size to Pluto but has never been visited. Research based on its orbital relationship with its moon Dysnomia suggests that Eris has a rocky interior below an icy shell. Unlike Pluto, Eris is thought to have separated rock from ice, indicating that it got hot enough at some point to melt. Eris has a higher rock content and a slower churning motion of ice, driven by leftover heat. The findings highlight the uniqueness of each dwarf planet and caution against inferring too much from what is known about Pluto.

via Yahoo News|

#composition #dwarf-planet #eris

science-and-technology2 years ago•3 min saved

Illuminating Earth's Core: Unveiling Light-Infused Secrets

Researchers at RIKEN's SPring-8 Center have developed a new pressure scale using advanced x-rays, revealing that Earth's inner core contains twice as much light material as previously estimated. The previous scale was found to overestimate pressure by over 20% at levels found in the core. This discovery has significant implications for understanding Earth's composition and the evolution of the solar system. The team used Inelastic X-ray Scattering (IXS) to measure the sound velocity of a rhenium sample under extreme pressure, providing a direct relationship between rhenium density and pressure. This breakthrough allows for easier future pressure measurements and suggests a reassessment of material properties at high pressures.

via SciTechDaily|

#composition #earths-core #pressure-scale

photography2 years ago•9 min saved

Capturing Serenity: Mastering Minimalist Photography with Long Exposures

Long exposures can be used in landscape photography to create a minimalist feel by simplifying scenes and emphasizing clean lines and shapes. By using heavy ND filters, photographers can block out most of the light and soften the water, while leaving rocks and structures in stark contrast. Long exposures also allow for the sculpting of water, creating a milky or misty look. Additionally, long exposures can simplify clouds and plants, creating a smoother or more abstract appearance. Monochrome conversions and intentional camera movement can further enhance the minimalist effect. Long exposures can be applied to various genres of photography, offering a creative and minimalist approach.

via PetaPixel|

#composition #landscape-photography #long-exposures

space-science2 years ago•2 min saved

"Earth's Boomerang Meteorite: A Return Journey After Millennia"

Scientists have discovered a peculiar rock, designated Northwest Africa 13188, that appears to be a meteorite but has a composition similar to rocks found deep in the ocean. They propose a radical explanation that the rock was knocked off Earth, traveled through space for thousands of years, and then returned. The rock's chemical composition and isotopic analysis suggest it originated from Earth, but its well-developed fusion crust and isotopic concentrations of beryllium, helium, and neon consistent with exposure to cosmic rays for 10,000 years support its classification as a meteorite. Further isotopic analysis is being conducted to understand how it left Earth and returned.

via IFLScience|

#composition #earth #isotopic-analysis

earth-science2 years ago•3 min saved

Unveiling Earth's Lower Mantle: Insights from Seismological Study

A research team led by Professor Wu Zhongqing from the University of Science and Technology of China has made significant progress in understanding the composition and thermal state of the Earth's lower mantle. By combining seismic tomography and mineral elasticity, they determined the spatial distribution of materials and temperatures in the lower mantle. Their findings revealed a Gaussian pattern of temperature distribution with minimal variations within a depth range of 1,600 kilometers, but widening distribution as depth increases. The study also identified the presence of large-scale low shear wave velocity provinces (LLSVPs) and their association with thermal anomalies and enriched concentrations of iron and bridgmanite. These insights contribute to our understanding of the Earth's deep structure and its formation, evolution, and dynamics.

via Phys.org|

#composition #earth-science #earths-interior

science-and-technology2 years ago•6 min saved

Unveiling the Composition of Primary Cosmic Rays: Insights into Cosmic-Ray Sulfur

The Alpha Magnetic Spectrometer (AMS) collaboration has published a paper in Physical Review Letters revealing new insights into the properties and composition of primary cosmic rays, specifically carbon, neon, magnesium, and sulfur. The AMS experiment on the International Space Station provides accurate measurements of elementary particles and all elements of the periodic table up to kinetic energy levels of over 1,000 Giga electron-volts per nucleon. The research group found that primary cosmic rays can be divided into at least two sub-classes, Ne-Mg-Si and He-C-O-Fe, and that sulfur cosmic rays have similar properties to the Ne-Mg-Si class. The findings challenge existing cosmic ray models and contribute to a better understanding of cosmic ray origin and propagation.

via Phys.org|

#alpha-magnetic-spectrometer #astrophysics #composition

space2 years ago•6 min saved

ESA's Mars Express Reveals Stunning New Global Color Mosaic of Mars

To mark the 20th anniversary of ESA's Mars Express mission, the High Resolution Stereo Camera (HRSC) team has created a new global color mosaic of Mars, revealing the planet's surface color and composition in spectacular detail. The mosaic highlights reddish oxidized iron, dark volcanic basaltic sands, and bright areas suggesting the past presence of liquid water. The mission will continue until at least 2026.

via SciTechDaily|

#composition #high-resolution-stereo-camera #mars

photography2 years ago•4 min saved

"30 Minimalist Masterpieces: Stunning Photos That Speak Volumes"

The Facebook group 'Minimalist Photography' invites people to share their works and has become a community of 285K members. Minimalist photography focuses on simplicity and limited compositional elements, and the subject of every photo takes on even greater importance. To make your own minimalist images, you have to be confident that the scenes that appeal to you will also appeal to others. Color—or the lack of it—can add focus, stir up drama, or even evoke serenity in minimalist photography.

via Bored Panda|

#artistic-photography #color #composition

science2 years ago•2 min saved

Comparing Gravity on the Moon and Earth.

The moon has gravity, but it is significantly weaker than Earth's. The moon's surface gravity creates an environment where astronauts appear to move with greater ease and buoyancy. However, the moon's gravitational field is not consistent throughout, as evidenced by Bouguer gravity anomalies. As Earth's natural satellite, the moon plays a vital role in shaping our planet's tides. Its composition consists of various minerals arranged in the core, mantle, and crust layers.

via The News International|

#astronauts #composition #gravity

science2 years ago•2 min saved

New Study Challenges Popular Theory on Origin of Earth's Continents

A popular hypothesis that garnet formation is the key mechanism for the difference in composition between continental and oceanic crust is being challenged by new experiments. The experiments showed that garnet formation alone cannot explain the composition of the continental crust. The team is now investigating whether oxidized sulfur could be oxidizing the iron, and therefore explain the discrepancy between continental and oceanic crust.

via IFLScience|

#composition #continents #earths-mantle

science-and-astronomy2 years ago•3 min saved

"UAE spacecraft captures stunning close-up images of Mars' mysterious moon Deimos"

The United Arab Emirates' Hope Mars mission has captured the closest-ever images of Deimos, one of Mars' small moons, from as close as 60 miles (100 km). The images and observations represent a significant step forward in our knowledge of Deimos, its atmosphere, composition, origins, and what this means for our understanding of Mars more broadly. The spacecraft's observations of the composition of Deimos suggest the moon came from Mars itself, which is another step forward in resolving a long-standing debate about its origins.

via Space.com|

#composition #deimos #hope-mars-mission

astronomy2 years ago•3 min saved

Bright Baby Jupiter Could Have Baked Its Moons

A new study suggests that a young Jupiter could have irradiated its four largest moons with light so intense that it vaporized water and stripped them of volatiles. This could explain why the Galilean moons have the compositions they do, from the hellacious volcano-world Io, closest to Jupiter, to ice-crusted Europa, then giant moon Ganymede, to the most distant, the crater-scarred Callisto. The findings offer a plausible explanation for the strange compositional differences between the four Galilean moons, which are thought to have formed from the same cloud of dust circling Jupiter.

via ScienceAlert|

#astronomy #composition #formation

science-and-astronomy2 years ago•3 min saved

Hot Clouds Observed on Exoplanet with Dual Suns by James Webb Space Telescope

NASA's James Webb Space Telescope has directly imaged the atmosphere of exoplanet VHS 1256 b, which orbits two stars and is about 19 times more massive than Jupiter. The telescope detected silicate clouds, similar to sand on Earth, and a variety of chemicals including water, methane, carbon monoxide, and carbon dioxide. This marks the largest number of molecules ever identified on a planet outside our solar system. The team is still analyzing the data to better understand the tempestuous atmosphere of this exoplanet.

via Space.com|

#composition #exoplanet #james-webb-space-telescope