Articles tagged with Mars
The Radiation Assessment Detector (RAD) has measured the radiation a human astronaut could be exposed to during a recent solar storm. The data collected will provide valuable information for future human space exploration, including insights into the physics of giant clouds and shielding provided by spacecraft.
A recent study by Mars, Incorporated and partners reveals the extensive metabolism of flavanol compounds after consumption, challenging existing in vitro studies. This research provides a critical step forward in understanding how cocoa flavanols exert their circulatory and cardiovascular benefits.
Ray Arvidson's proposal aims to study crusted soils using the Curiosity rover, which can break through crusts and become mired in softer soils. The project has operational and scientific purposes, helping the rover navigate challenging terrain and investigate potentially habitable environments.
A team of researchers led by an undergraduate student at the University of Arizona has discovered that meteorite shockwaves trigger massive dust avalanches on Mars. The study found that shockwaves preceding the actual impact cause dust avalanches, revealing a new way impacts shape the planet's surface.
A team of scientists from Oregon State University has discovered microbes that can thrive in cold, low-oxygen conditions similar to those on Mars. These microbes use the oxidation of iron from olivine as their energy source, a process previously undocumented.
Five NASA Goddard scientists have been selected to participate in the Mars Science Laboratory (MSL) and Cassini missions. Dr. Jennifer Eigenbrode will study high-energy ionizing radiation on Mars' sediments, while Dr. Daniel Glavin will investigate amines of biological origin using new Sample Analysis at Mars protocols. Dr. Michael Smi...
The Radiation Assessment Detector (RAD) is measuring radiation levels on NASA's next rover mission to Mars. RAD characterizes the radiation environment astronauts would experience during a future human mission to Mars.
The Radiation Assessment Detector (RAD) on NASA's Curiosity rover measures the Martian surface radiation environment, shedding light on habitability and planning for future human missions. RAD's data will help scientists assess conditions favorable for life and determine required radiation shielding.
Two NASA missions aim to discover what transformed Mars from a potentially habitable planet to its current inhospitable state. The Curiosity rover and the MAVEN mission will explore Martian terrain, atmosphere, and geology to uncover clues about the Red Planet's past climate and potential for life.
The 520-day Mars Mission simulated prolonged operational confinement on a six-member international crew, collecting over 4.5 million minutes of actiwatch data to evaluate the impact on sleep patterns and mental health. The study's findings will help scientists mitigate potential problems for future long-duration space missions.
A pair of postdoctoral researchers at Penn State suggest that we have not looked in enough places to ensure the absence of extraterrestrial artifacts. They used a probabilistic method to determine if sufficient searching has been done, finding it challenging to rule out their presence.
Researchers established diffusion parameters for argon in jarosite, allowing them to measure the age of the mineral and surface conditions. This discovery provides a roadmap for studying Martian samples brought back to Earth, with implications for searching for potential habitats harboring life.
Researchers at WALTHAM Centre for Pet Nutrition found that a diet high in moisture boosts urinary tract health in cats by increasing daily water intake, urine volume, and dilution. This helps reduce the risk of urinary stone disease in cats.
A team of researchers at WALTHAM found that neutered female kittens consumed more food and gained more body weight than their entire littermates. The study suggests that portion control is crucial for maintaining healthy weight in neutered kittens.
A nationwide study of over 17,000 dogs and 6,000 cats found that including commercial dry food in their diet improved oral health compared to home-prepared alternatives. Daily tooth brushing or dental chews also showed significant benefits.
Researchers at Caltech have directly determined the surface temperature of early Mars for the first time. They found that carbonate minerals formed at about 18 degrees Celsius, consistent with a warmer and wetter Martian past. This finding provides crucial evidence for understanding Mars' history and climate.
Researchers re-examining the Hesperia Planum on Mars have discovered a complex landscape with narrow, sinuous channels that defy explanation. The team, led by Tracy Gregg, is seeking help from scientists studying similar features on the Moon to shed light on the channels' origins.
The Mars rover Opportunity is poised on a rock that may yield clues to the planet's environment when running rivers coursed the surface. The rover is sampling an impact crater produced during heavy bombardment, which could indicate conditions conducive to life.
New life-detection tools up to 1,000 times more sensitive than previous instruments are being used to search for evidence of life on Mars. Researchers are also searching the planet's atmosphere for signs of methane, which could indicate biological activity.
The first manned mission to Mars poses significant challenges in provisioning astronauts with food, including weight, nutrition, and psychological factors. Bioregenerative systems that involve growing crops could supply food, oxygen, and purify air, while shipping bulk commodities is another option.
A new nuclear power plant design could provide a compact and reliable source of electricity for manned or unmanned bases on the Moon and Mars. The system is designed to operate in various locations such as craters, canyons, or caves, and can generate large amounts of power, approximately the same as powering eight houses on Earth.
Seasonal dark features on Martian slopes suggest the presence of salty water, which could indicate a habitable environment. The recurring flows may be formed by fluid seeping down slopes and have characteristics that fit better with briny water explanations.
A study by Waltham Centre for Pet Nutrition found that cats fed a hydrated diet had a slower rate of weight gain and were more physically active. This breakthrough has important implications for developing feeding strategies to modulate weight gain in cats.
Researchers propose a new theory on Mars' small size and low mass, suggesting that Jupiter's early gas-driven migration stripped the region of formation materials. The 'Grand Tack Scenario' simulation explains properties of the asteroid belt and its compositional differences between inner- and outer-belt bodies.
A new study published in Nature suggests Mars developed rapidly into a small planet due to its rapid formation. Scientists used the radioactive decay of hafnium to tungsten in meteorites as a chronometer and found that Mars likely didn't collide with other embryos to form an Earth-like planet.
A new study published in Nature reveals that Mars developed in just two to four million years after the solar system's formation, significantly faster than Earth. This rapid formation helps explain why Mars is so small compared to our planet.
Scientists at Indiana University will study methane production in Arctic environments to help NASA detect carbon-based life on Mars and other celestial bodies. The three-year project aims to understand the conditions that support life on Earth and how they compare to those found elsewhere in the solar system.
Researchers from Universitat Autonoma de Barcelona have discovered formations in Catalonia resembling Mars' giant spring mounds. The study, published in Geodinamica Acta, suggests possible similarities in origin, shedding new light on the search for water on Mars.
Scientists suggest that bombardments of micro-meteorites on Earth and Mars four billion years ago led to catastrophic cooling effects, making it hard for early life to thrive. The influx of sulphur dioxide into the atmospheres of both planets could have plunged them into an Arctic winter, lasting millions of years.
A new analytical technique makes it easier to analyze rocks and soils on Mars, possibly indicating signs of life. The tool combines mass spectrometry with laser ablation and an ion funnel, allowing for in-situ analysis without sample handling.
Scientists have found that the sand dunes in a vast area of northern Mars are changing with both sudden and gradual motions, contrary to previous assumptions. The changes were caused by seasonal carbon-dioxide ice and stronger-than-expected gusts of wind, resulting in sand avalanches and erosion.
Scientists have used rare Martian meteorite samples to reveal that a collision on Mars caused water to flow near the planet's surface. The research found veins created during an impact, which suggests that buried ice melted and deposited minerals such as clay and serpentine.
A team of researchers at Brown University discovered a mineral deposit on Mars that speaks of a warm and wet past, potentially preserving evidence of microbial life. The deposit, located in the Syrtis Major volcanic zone, is believed to have formed in a hydrothermal environment.
A UT Dallas professor designed a mass spectrometer that analyzed soil samples from Mars, revealing the ratio of carbon dioxide isotopes and their reaction to volcanic activity. This provides a more complete understanding of the current Martian atmosphere and climate history.
The Sample Analysis at Mars (SAM) instrument suite is nearly ready for a December delivery to the Curiosity rover on NASA's Jet Propulsion Laboratory. Once deployed, SAM will become an automated laboratory, assessing whether Mars ever supported microbial life.
The sun uses its solar wind and ultraviolet radiation to strip Mars' atmosphere, making it cold and dry. MAVEN will examine the ways the sun loses the Martian atmosphere and measure hydrogen isotope ratios to discover how much water has been lost to space.
The MAVEN mission aims to investigate how Mars lost its atmosphere and gain insight into the Red Planet's history. The spacecraft will make definitive scientific measurements of present-day atmospheric loss, addressing fundamental science questions.
Measurements by NASA's Phoenix Mars Lander suggest that liquid water has primarily existed at temperatures near freezing on Mars, implying hydrothermal systems similar to Earth's hot springs are rare. The findings provide new light on Mars' history of water and volcanic activity.
Researchers developed self-dusting solar panels using technology from Mars space missions, reducing dust impact on solar energy output. The new coating can remove up to 90% of deposited dust within two minutes, minimizing maintenance costs and increasing efficiency.
Research published in the Journal of Physiology found that astronaut muscles deteriorate to that of an 80-year-old after just 180 days in space. The study highlights the need for effective exercise countermeasures to protect muscle and bone on long-duration space missions.
The Caltech-Canadian Space Agency partnership aims to detect signs of microbial life and geological activity on Mars. The MATMOS instrument will analyze gases in the Martian atmosphere with high sensitivity.
New research on Martian rocks suggests they may hold evidence of living organisms from 4 billion years ago. The findings provide a promising lead for future exobiology missions and shed light on the potential for life on early Mars.
New research suggests that liquid water existed all over Mars during its early history, with studies of minerals found in craters revealing a global alteration by water. The discovery provides clues about the planet's potential habitability and suggests sites for future landers.
A team from Brown University has discovered extensive glaciofluvial valleys on Mars, which were formed by running water originating from glaciers. The findings, published in Icarus, indicate that water existed on the planet as recently as several hundred million years ago.
A new CU-Boulder study provides further support for the idea of a sustained sea on Mars during the Noachian era, suggesting an ancient ocean likely covered about 36% of the planet. The research implies an Earth-like global hydrological cycle, including precipitation, runoff, cloud formation, and ice and groundwater accumulation.
A new theory suggests that iron oxides in Martian soil decompose organic molecules through photocatalysis, converting them to carbon dioxide and methane. This process may explain the absence of organic compounds on the planet's surface, requiring deeper drilling to find preserved organics.
A team of researchers has discovered methane-eating bacteria that can thrive in extremely salty and cold environments, similar to those found on Mars. The microbes, which survive by eating methane and breathing sulfate instead of oxygen, have implications for the possibility of life existing on the Red Planet.
Scientists have discovered an outcrop of carbonate-rich rock, dubbed Comanche, in the Columbia Hills of Gusev Crater on Mars. The discovery was made possible by a calibration technique developed to correct for dust effects on the instrument, revealing a couple of large outcrops of rock with high carbonate content.
A six-man international crew will undergo a simulated 520-day Mars mission to assess the impact of prolonged isolation on mental health. The study aims to better understand how sleep loss, fatigue, and stress affect performance in long-duration space missions.
A new computer model developed by NC State University researchers allows engineers to test different vehicle designs for a Mars rover. The model takes into account various conditions such as wind and terrain, enabling informed decisions about the final design characteristics.
The University of Leicester is involved in the ExoMars mission, which aims to characterise the chemical, geological and possible biological environment on Mars. The mission will attempt to gather samples from a depth 1-2m below the surface where they are protected from radiation.
Researchers use radar and camera data to reconstruct the formation of two enigmatic features in Mars' northern ice cap: a massive canyon and spiral troughs. Wind erosion is found to be the primary force shaping these complex structures, revealing a detailed climate history.
Researchers have reconstructed the formation of two curious features in Mars' northern ice cap, including Chasma Boreale and spiral troughs, revealing that wind shapes polar ice caps over millions of years. The study provides new evidence of climate change on Mars and vindicates an early explanation for the spiral troughs.
Recent studies found that diverse microbial communities persist on spacecraft despite sterilization efforts. Escherichia coli was discovered to survive on Martian surfaces under shielded conditions or with thin dust layers.
A research team led by the University of Georgia has discovered a previously unreported chemical mechanism for nitrous oxide production in Antarctic Don Juan Pond. The discovery could help space scientists understand the Martian nitrogen cycle and develop sensors to detect brines on Mars.
A new study reveals that a Martian meteorite, ALH84001, is approximately 4.091 billion years old, significantly younger than previously estimated ages. This finding suggests that volcanic activity was ongoing in Mars for much of its history and has implications for understanding the planet's evolution.
A new monitoring system developed by RIT professor Roger Dube will predict space storms on Mars and provide early warnings for the critical infrastructure on Earth. The system uses artificial intelligence to recognize signs of a dangerous flux of particles, enabling at least three days' advanced warning for people living on both planets.
Space physicists from the University of Leicester have identified a significant contributor to Mars' atmospheric escape: pressure from solar wind pulses. The team found that these pulses can drive away particles from Mars' atmosphere, causing a loss of about one third of the material lost into space.
Scientists find that Arctic sea ice loss is driven by the formation of arches, which block flow and lead to increased ice loss. In Mars, solar wind pulses contribute to atmospheric escape, with bursts occurring in association with corotating interaction regions.
Researchers find evidence that a Martian channel was formed by lava flows, contradicting previous theories that suggested water carving. The discovery has implications for the geological evolution of Mars and our understanding of its potential for life.