Articles tagged with Space Weathering
A breakthrough study reveals that powerful solar storms can lead to sharp changes in North American weather patterns, including declines in precipitation. The more intense the storm, the more dramatic the shift in weather.
Researchers studied Chang'e-5 lunar regolith, identifying nanoscale evolution of surface materials through impact-induced silicate phase separation and formation of metallic iron. The findings provide new insights into spectral evolution of the Moon and processes responsible for forming lunar impact glass.
The team analyzed LHS 3844 b's infrared radiation, finding it doesn't match Earth-like silicate-rich minerals. Instead, the spectrum suggests a dark, rocky surface composed of basaltic or magmatic minerals, possibly with a recently active geological history.
A recent study analyzed Apollo-era samples to understand how space weathering affects lunar surface materials and their far-ultraviolet reflectance. The research provided valuable insights into the evolution of the lunar surface, enabling better interpretation of remote sensing data from lunar missions.
A new study on Mars crater deposits reveals the planet went through repeated ice ages driven by shifts in its axial tilt, resulting in a gradual drying of the planet. The study provides insights that can be applied to Earth's changing environment and helps identify safe regions for future missions.
A study of Bennu samples reveals the asteroid reflects light differently at red and blue wavelengths, offering insights into solar system evolution. The findings also enable future research on asteroid navigation and selection.
The OSIRIS-REx sample return mission revealed asteroid Bennu's composition, history, and unique materials. Researchers found stardust from other stars and organic material formed in interstellar space, shedding light on the early solar system's formation.
Researchers propose using soft X-rays to measure reconnection rates and monitor space weather. By analyzing bright X-ray features, they calculated a global reconnection rate of 0.13, closely matching theoretical predictions.
A powerful Coronal Mass Ejection (CME) erupted from the Sun, initiating a severe geomagnetic storm alert for Earth. The event was observed by NRL's space-based instrumentation and highlighted the importance of CME research in understanding the conditions of the Earth's magnetosphere.
The study found that solar wind radiation plays a dominant role in space weathering on the lunar farside, differing from the nearside. The Chang'e-6 samples showed less melt drops and no nanophase metallic iron particles, indicating variations in the space environment.
Scientists have discovered that channels carved by rivers have distinct curves compared to those cut by lava or ice. The research could be used as a diagnostic tool for sinuous channels on other worlds with unknown fluid origins.
Model simulations reveal a unique pattern of polar vortices that evolves with the solar cycle, shedding light on the Sun's magnetism and potential space weather disruptions. The findings imply that future missions to the Sun may observe these vortices during certain phases of the solar cycle.
The University of Texas at Arlington has been awarded a $1.5 million grant from the National Science Foundation to train scientists in space physics and data science. The grant will also enable UTA to create a specialization in space physics for students pursuing a Bachelor of Science in physics.
A new study by MIT and University of Chicago scientists pin down the origins of the moon's tenuous atmosphere, finding that meteorite impacts are the primary process. Over billions of years, these constant impacts have kicked up lunar soil, vaporizing certain atoms and lofting particles into a thin atmosphere.
Researchers studied Chang'e-5 samples to understand how solar wind irradiation and micrometeorite impacts form metallic iron nanoparticles, revealing distinct effects on size and optical properties. The study provides insights into lunar surface color variations and remote sensing measurements.
The Lunar Environment Monitoring System, developed by UMD researchers, will track seismic activity on the moon's surface during the upcoming Artemis III mission. The system's data will help prepare NASA for a long-term presence on other planetary bodies.
High-energy electrons from Earth's plasma sheet contribute to weathering processes on the Moon's surface, aiding in the formation of water. The discovery may help explain the origin of lunar water ice and provide insights into the Moon's evolution.
Researchers at KTH Royal Institute of Technology discovered a new way Earth's magnetic field produces plasma jets, which can weaken the planet's first line of defense. The study used NASA's Magnetospheric Multiscale Mission satellites to track the formation and origin of these downstream jets.
A team of researchers found evidence that solar wind altered the chemical composition of ancient asteroid grains, producing water molecules and providing a possible source for Earth's oceans. The discovery could help future space missions find sources of water on airless worlds.
Northern Arizona University assistant professor Cristina Thomas has received NASA grants to study small Koronis asteroids and Trojan-like asteroids in the Main Asteroid Belt. Her research will help scientists better understand the origins of asteroids and provide insights into space weathering and material delivery to the belt.
Scientists discovered a new way to analyze lunar soil using atom probe tomography, allowing them to identify products of space weathering, pure iron, water, and helium. This technique can help researchers learn more about conditions on the Moon's surface and formation of precious resources.
A recent study confirms that asteroids can be the source of Earth's meteorites due to space weathering. The process of high-energy ion bombardment and particle vaporization changes an asteroid's optical properties, making them similar to common meteorite samples.