A new neural probe design captures lost signals in brain activity, enabling experiments previously impossible. The probe's improved shielding and boron-infused silicon increase conductivity, allowing researchers to modulate neurons with high temporal resolution.
The Arecibo Observatory is tracking a near-Earth asteroid called 1998 OR2, which has unique topographic features that resemble a face mask. The asteroid's size and rotation period have been confirmed through observations, and monitoring its trajectory will help improve impact-risk mitigation technologies.
The Hayabusa2 spacecraft impacted asteroid Ryugu, creating an artificial crater that provided insights into the asteroid's age and surface cohesion. The results suggest a younger age estimate for Ryugu, with implications for surface age estimations of other rubble-pile asteroids.
Researchers have linked enriched chalcophile elements like copper and silver to the end-Cretaceous asteroid impact at the Yucatán Peninsula. These elements were likely supplied to the ocean through processes related to the impact, including iron oxides/hydroxides acting as a carrier phase.
Researchers find tiny iron crystals on asteroid Itokawa's surface, formed by space weathering and the release of iron from troilite minerals. The discovery provides insights into weathering processes on other celestial bodies and helps date asteroids.
Researchers from Curtin University analyzed volcanic meteorites from Antarctica to understand Asteroid Vesta's geological history. The study found that Vesta was volcanically active for at least 30 million years after its formation, contradicting previous models and suggesting pockets of magma survived on the asteroid.
Researchers develop framework to consider asteroid mass, momentum, and warning time to determine most successful deflection mission. The method could be used to design optimal mission configuration and campaign to deflect potentially hazardous near-Earth asteroids.
According to a University of Warwick astronomer, the majority of stars in the universe will become luminous enough to blast surrounding asteroids into successively smaller fragments. This process will be triggered by the YORP effect, which creates an imbalance that spins up orbiting asteroids until they break apart.
A SwRI-led team used data from NASA's Parker Solar Probe to identify low-energy particles near the Sun, likely originating from solar wind interactions beyond Earth orbit. The particles are thought to be created by stream interaction regions and can pose a radiation threat to space travelers and technology.
Scientists at Curtin University have discovered the Yarrabubba crater, dated to 2.229 billion years ago, coinciding with the end of a global deep freeze known as Snowball Earth. The research suggests that the asteroid impact may have influenced global climate by vaporizing ice and releasing greenhouse gases.
A Yale-led team of researchers argue that asteroid impacts, not volcanoes, were the primary cause of the mass extinction event that killed the dinosaurs. The study's findings contradict recent work on the Deccan Traps, massive eruptions in India that occurred around the time of the K-Pg extinction event.
Researchers found that asteroid impact was primary cause of K/Pg mass extinction, while volcanic outgassing played role in shaping species after event. Volcanic emissions altered carbon cycle, allowing oceans to absorb CO2, limiting global warming and potentially influencing Cenozoic life.
Researchers create two-modal fluorogenic probe to monitor protein aggregation, enabling detailed assessment of polarity and unfolded protein load. The NTPAN-MI probe offers a sharper picture of cellular stress responses, allowing for more accurate knowledge of crosstalk between components.
Researchers have developed a noncontact laser ultrasound technique that generates and detects sound waves on the skin surface using eye- and skin-safe lasers. This method produces images with centimeter depths, comparable to clinical ultrasound, and shows sensitivity to tissue features currently detected by conventional ultrasound.
MIT engineers develop new laser ultrasound technique that remotely images inside a person, eliminating the need for direct contact. The method uses sound waves generated by a laser to create images comparable to conventional ultrasound, with potential applications in imaging infants, burn victims, and accident survivors.
Researchers identified secondary and tertiary fission clusters in young asteroid families formed by collision. The discovery challenges the long-held view that fission clusters and collisional families are distinct.
The Parker Solar Probe has returned significant data on the Sun's atmosphere, revealing insights into the solar wind and its effects on space weather. The probe's findings have shed light on magnetic disturbances in the solar wind and the processes that heat the Sun's outer atmosphere.
Fossilized seashells from Antarctica reveal that the Earth's oceans were undergoing significant changes in response to increased carbon dioxide from volcanic eruptions. These findings provide new insights into the causes of the Cretaceous-Paleogene mass extinction event, which led to the demise of the dinosaurs.
A new Hyb-Seq probe set has been validated for its effectiveness in reconstructing relationships among species within the diverse Asteraceae family. The study's findings highlight the importance of carefully selecting genes to sequence and optimizing data analysis pipelines to improve phylogenetic outcomes.
The OSIRIS-REx spacecraft captured images of material being ejected from asteroid Bennu's surface, revealing three discrete events of particle ejection. The authors suggest micro-meteorite impacts and dehydration as possible causes, with implications for the asteroid's evolution.
The Parker Solar Probe has mapped the source of the slow solar wind to coronal holes on the sun's surface, which are cooler and less dense than surrounding corona. The probe also detected switchbacks in the magnetic field that may accelerate particles toward Earth, posing potential damage to electrical grids and orbiting satellites.
The Parker Solar Probe has completed three passes through the Sun's atmosphere, revealing new information about the material and particles that speed away from the star. The data shows a complicated, active system with quick reversals in the magnetic field and sudden, faster-moving jets of material.
The Parker Solar Probe mission has unveiled a surprisingly chaotic world within the sun's corona, characterized by rogue plasma waves, flipping magnetic fields, and distant solar winds. The findings have significant implications for space weather forecasting and our understanding of the sun's behavior.
The Parker Solar Probe has discovered new evidence on how the solar wind is accelerated away from the Sun's surface, finding that bursty 'spikes' originate in holes near the equator and are generated by magnetic reconnection. The probe also measured a sideways speed of the solar wind, which contradicts previous predictions.
Researchers analyzed Ryugu asteroid's impact craters to understand its geological history. The study revealed that the eastern hemisphere was formed earlier than the western hemisphere, with more craters found at lower latitudes.
Astronomers using ESO's SPHERE instrument have observed Hygiea, the fourth largest asteroid in the belt, and found it could be classified as a dwarf planet due to its spherical shape. The team's observations put Hygiea's diameter at over 430 km.
A study published in Scientific Reports suggests an asteroid or comet hit Earth 12,800 years ago, causing a period of extreme cooling and contributing to the extinctions of over 35 species of megafauna. The impact hypothesis is supported by platinum spikes found at research sites worldwide, including South Carolina, Europe, and Chile.
A new study has confirmed that a massive asteroid impact led to the extinction of dinosaurs and much of life on Earth. The impact caused rapid ocean acidification, which lasted for tens of thousands of years before life forms recovered and the carbon cycle reached a new equilibrium.
A recent study from University of Alberta researchers suggests there may be no relationship between near misses and continued play, contrary to widely held beliefs. The study found that despite brain activity changes and subjective measurements, conclusive evidence for a near-miss effect on gambling persistence is lacking.
Researchers analyzed data from Galileo's 1995 fireball and found the recession rate exceeded predictions, highlighting issues with current heat shield models. New fluid dynamics models using faster computers and data from the probe have led to a better understanding of atmospheric entry vehicles.
The GLIDE spacecraft will reveal the structure and dynamic behavior of the Earth's outermost atmospheric layer, known as the exosphere. The mission will make unprecedented measurements of far ultraviolet light emitted by hydrogen atoms in the exosphere.
A new satellite mission, SWOT, will enhance flood modeling globally, even in extensively studied regions. It will provide more accurate floodplain maps and predictions for areas affected by snowmelt, hurricanes, and ice jam breakup.
A new study suggests that a giant asteroid collision 466 million years ago caused an ancient ice age by releasing massive amounts of extraterrestrial dust into the atmosphere, leading to global cooling. This phenomenon allowed life to adapt and thrive in changing temperatures.
Researchers from Lund University found that a massive asteroid impact 470 million years ago led to a unique ice age and increased biodiversity in the inner solar system. The study suggests that dust from such an event could be used to cool the planet and mitigate climate change.
Scientists confirm scenario that dinosaurs died due to global cooling after asteroid impact, with rocks recording wildfires and sulfur absence within 24 hours. The research provides the most detailed look yet into the aftermath of the catastrophe.
Images taken by Hayabusa2's lander on Ryugu's surface show rocks bearing similarities to primitive meteorites called carbonaceous chondrites, supporting theories that the asteroid formed during a cataclysmic event. The findings also reveal an unusual lack of fine particles or dust on the surface.
University of Arizona researchers are using the Catalina Sky Survey's near-Earth object telescopes to find optical counterparts to gravitational waves triggered by massive mergers. The team found several supernovae and a near-Earth object during their ongoing campaign, which began in April.
Tropical Depression 3 formed off central Florida's eastern coast, generating heavy rainfall northeast of its center. The Global Precipitation Measurement mission found rain falling at a rate of 25 mm/hour in this area.
The China Lunar Exploration Program (CLEP) has accomplished significant advancements in lunar research since its launch in 2007. The program plans to send the first sample-return mission to Earth, dubbed Chang'E 5, and establish a Lunar Scientific Research Station by 2030.
Researchers developed a new method to monitor neonicotinoids in living plants, allowing for spatial and temporal tracking of the insecticides. This probe could help pinpoint where and when bees are exposed to pesticides, informing efforts to protect pollinator populations.
Researchers at Washington State University have improved the software used to track thousands of near-Earth asteroids and comets, reducing modeling time from months to just hours. This breakthrough enables scientists to better predict asteroid orbits and potential collisions with Earth.
The SULIS mission aims to understand the nature of solar eruptions and track magnetic clouds of charged gas. It will also demonstrate new technologies in space and precision alignment of small satellites flying in formation.
Researchers developed a probe that accurately traces the sigma-1 receptor on ER surfaces, showing promise for studying neurological disorders and cancer. The probe was tested on prostate cancer cells, haloperidol-sensitive signal detected.
A hair-sized probe developed by scientists can measure key indicators of tissue damage deep in the lung, improving patient assessment and treatment. The technology offers fast, accurate measurements and flexibility to add more sensors, applicable to other body regions and inflammatory diseases.
Researchers have developed a hybrid device that uses near-infrared light to monitor blood flow, providing a quick and noninvasive diagnosis of cerebral ischemia. The device can record comprehensive profiles of hemodynamics, improving treatment effectiveness within the first few hours of stroke onset.
Scientists uncover precise timing of a large-scale collision on Vesta, explaining its lopsided shape and differentiation into crust, mantle, and metallic core. The study provides a confident framework for understanding Vesta's geological timeline, shedding light on protoplanet formation and the early Solar System.
Researchers have discovered a large mass of material beneath the South Pole-Aitken basin, the Moon's largest crater. The mass, weighing over half a mile, may contain metal from an asteroid that crashed into the Moon and formed the crater.
Researchers believe a zone of preferential heating surrounds the sun's surface, with temperatures rising and individual elements heated to different levels. The Parker Solar Probe will test this theory by entering the zone in 2021, providing direct measurements of processes behind solar wind acceleration.
Researchers have developed a microglia-selective fluorogenic probe that triggers fluorescence through gene expression, enabling selective labeling and imaging of microglia cells in live brain tissue. This probe has the potential to detect developing neural diseases such as Alzheimer's disease and stroke.
Researchers have created a sensor that can measure and image magnetic structures at the atomic scale, enabling new directions in atomic-scale research. The sensor uses a single molecule magnet as a scanning magnetometer to detect spin-spin interactions between molecules.
Researchers at Arizona State University have detected water in samples from the asteroid Itokawa, which suggests that impacts early in Earth's history may have delivered as much as half of our planet's ocean water. The team used ASU's NanoSIMS technology to analyze tiny mineral grains and found they were enriched in water compared to o...
Astronomers use thermal wavelengths to spot near-Earth objects, providing critical details for defensive strategies. This technique enables the calculation of energy required to nudge an object away from Earth's trajectory, shedding light on the solar system's formation.
Astronomers used asteroid occultations to measure the smallest apparent size of a star on the night sky, revealing the diameter of a giant star and a sun-like star. The new method provides ten times better resolution than standard lunar occultation methods.
Researchers propose that metallic asteroids could have erupted volcanoes spewing liquid iron, with signs of 'ferrovolcanism' potentially detectable in iron meteorites. The study suggests NASA's Psyche mission may uncover evidence of past eruptions on the asteroid.
Astronomers have observed the disintegration of asteroid 6478 Gault using NASA's Hubble Space Telescope and other observatories. The asteroid's rapid spinning has caused it to shed material, resulting in two narrow tails of dusty debris streaming from its surface.
Asteroid Gault, a well-known space rock, has begun slowly disintegrating as it develops comet-like tails. The newly observed event suggests that asteroids are dynamic and active worlds, prone to spin-up processes that can lead to disintegration.
Asteroid Gault, one of only a handful to be caught disintegrating, has been observed in clear images from the Hubble Space Telescope. The object's two narrow tails indicate it is slowly undergoing self-destruction, releasing material into space.
The Hayabusa2 mission provides valuable insights into the composition and history of asteroid Ryugu, helping researchers understand the presence or absence of essential materials for life. The study reveals that Ryugu is a dry asteroid, which challenges current models of the early solar system.
The Hayabusa2 mission has provided new insights into the composition and origin of the Ryugu asteroid, revealing it to be a porous 'rubble pile' with a highly porous interior and low density. The asteroid's surface is also characterized by hydrated minerals, which are ubiquitous across its dark surface.
A Southwest Research Institute-led team has discovered that the surface geology on asteroid Bennu is older than expected, with large impact craters and fractured boulders indicating ages of hundreds of millions of years. The OSIRIS-REx mission revealed ancient features on Bennu's surface while also showing signs of recent resurfacing.