Researchers have discovered microbial etchings in impact glass from the Ries Impact Structure, Germany, which are remarkably similar to bioalteration textures observed in volcanic glasses. The authors suggest that microbes etched their way through impact glass as they excreted organic acids, creating a potential habitat for life on Mars.
Researchers analyzed 40 Martian meteorites to understand the evolution of Mars' atmosphere, shedding light on whether life existed or could have existed on the red planet. The study found that the atmospheres of Mars and Earth diverged early in the solar system's history, with sulfur playing a key role in shaping the Martian environment.
A new analysis by ASU scientist Steve Ruff suggests that Lake Gusev on Mars once held a lake, with evidence of low-temperature surface waters introducing carbonates into rocks. The discovery sheds light on the crater's geological history and potential astrobiological significance.
NASA's Hubble Space Telescope captured an image of Mars-bound comet Siding Spring, revealing two jets of dust emanating from the nucleus. This observation will help astronomers determine the direction of the nucleus's pole and axis of rotation.
Researchers have designed a vacuum chamber to mimic Martian conditions, testing instruments and addressing challenges like dust. The goal is to better understand the habitability of other planets.
The MAVEN spacecraft has completed its initial checkout and is now ready to carry out its full science mission. The Mars Atmosphere and Volatile Evolution (MAVEN) mission aims to determine the role of gas escape in changing Mars' climate throughout its history.
The CSIRO Australia-led research reveals the oldest minerals ever analyzed by NASA's Mars Opportunity Rover show evidence of liquid water on Mars around 4 billion years ago. The discovery suggests that past water activity may have created livable mud, increasing the chances of life on Mars.
The Opportunity rover has discovered evidence of conditions that support the chemistry of life in Mars' past, earning a spot in Science magazine. The 10-year-old rover explored Martian geology and environmental processes, searching for signs of habitability and life.
Researchers suggest that megafloods created the unique amphitheater-headed canyons in Idaho and on Mars, replacing traditional theories of groundwater sapping. The team analyzed rock samples and scour marks to support their claims, pointing to much larger water discharges and shorter flow durations.
Researchers at California Institute of Technology successfully dated a Martian rock using the Sample Analysis on Mars instrument, determining its age to be about 3.86-4.56 billion years old. This experiment provides valuable insights into Mars' geologic history and aids in searching for evidence of ancient life on the planet.
The Radiation Assessment Detector measured radiation on Mars' surface, revealing an average GCR dose equivalent rate of 0.67 millisieverts per day. The findings also show that most mission radiation exposure will occur during outbound and return travel, posing a challenge for future human exploration.
Researchers from NASA's Curiosity rover mission found evidence of a calm and fresh-watered lake on Mars that may have supported simple microbial life. The team believes the lake may have lasted for tens or hundreds of thousands of years, providing perfect conditions for chemolithoautotrophs to thrive.
Three mass spectrometers from NASA's Goddard Space Flight Center conducted simultaneous experiments on the moon and Mars to analyze atmospheric and rock samples. This milestone demonstrates the value of these instruments for understanding planetary environments.
A team of researchers suggests that molecular hydrogen, in addition to carbon dioxide and water, could have created a greenhouse effect on Mars 3.8 billion years ago, raising temperatures high enough for liquid water to flow.
A Florida State University scientist has discovered a 4.4 billion-year-old Martian meteorite that may be the first recognized example of ancient Martian crust. The analysis reveals information about the origin and age of Mars' crust, confirming that the planet did not experience a giant impact that melted it in its early history.
The NASA MAVEN mission has launched successfully, embarking on a 10-month journey to the Red Planet. The spacecraft will arrive at Mars in September 2014 and begin collecting science data after completing a check-out period.
Scientists have found that Mars can also stir up asteroid surfaces, refreshing them over time. The research suggests that the Red Planet plays a key role in altering the chemical nature of asteroids' surfaces, changing their reddish hue.
Researchers found rich deposits of feldspar, a mineral common in granite, in an ancient Martian volcano. The discovery suggests prolonged magmatic activity on Mars, leading to the formation of granite-like rocks, challenging previous assumptions about Martian geology.
A team of scientists found evidence for bromides converting to reactive gases in Martian soil, leading to variable sulfur-chlorine ratios. This could alter existing models of aqueous processes and oxidants on Mars, affecting the search for life. The study also suggests that volatilized halogens may have impacted subsurface distribution.
The Solar Wind Electron Analyzer (SWEA) will track how charged particles, such as planetary oxygen ions, escape the planet's atmosphere. By identifying electrons in the solar wind and Martian ionosphere, SWEA can determine where the boundary layer between the two regions is located.
The Curiosity rover's direct measurement of argon gas on Mars pinpoints the origins of Martian meteorites, shedding light on atmospheric loss. The discovery provides a clear signature of the planet's history and supports previous findings of atmospheric decline on Mars.
The NASA Mars rover Curiosity has found water in its first sample of Martian soil, with fine materials containing several percent water by weight. The discovery sheds light on the planet's surface composition and implications for future research.
A team of MSL scientists analyzed a martian rock called Jake_M, which is highly enriched in sodium and potassium, making it chemically alkaline. The analysis suggests that parts of Mars may be more like Earth than previously thought, with the rock possibly forming from partial melting of rocks deep inside the planet.
The Curiosity rover's Sample Analysis at Mars (SAM) instrument suite found 2% water in Martian surface soil, indicating a significant resource for the planet. The analysis also revealed perchlorate and chlorate compounds, suggesting they could be distributed globally.
The Curiosity Rover discovered a diverse range of soils and sediments on Mars, revealing small amounts of water in the dust and fine soil. The findings suggest that water may be present in the Martian environment, potentially providing a source for future astronauts.
Researchers analyzing Martian rocks using Curiosity rover's chemical instruments found a pyramid-shaped volcanic rock called a mugearite, similar to those on Earth. The discovery suggests the presence of water deep below Mars' surface, a crucial ingredient for life.
A new camera system, TextureCam, allows future Mars rovers to prioritize their scientific objectives and explore more distant worlds. The system uses machine learning algorithms to recognize rocks, sand, and sky in photos, enabling autonomous decision-making and increased autonomy.
Researchers from Southwest Research Institute discovered frozen water can melt to form debris flows on Alaskan sand dunes, mirroring Martian 'dark dune spot' seepage flows. These findings provide valuable analogies for understanding Martian processes and their potential impact on future Mars missions.
A team of MIT and Washington University researchers developed a terramechanics model called Artemis, simulating rover mobility over various soil types and terrain. The model predicts safest paths for rovers and can help mission planners avoid sand traps like the Spirit rover.
New research presents evidence suggesting that life may have originated on Mars and was brought to Earth via a Martian meteorite. The study tackles two paradoxes related to the origin of life on Earth, including the 'tar paradox' and the difficulty in starting life due to water coverage.
Professor Harry 'Hap' McSween, a leading expert on Mars composition and meteorites, will receive the Whipple Award for his pioneering studies of Martian geology. The award recognizes his significant contributions to the field of planetary science.
Researchers at Brown University propose that double-layered ejecta craters on Mars were formed when impacts blasted through ancient glacial ice, creating a two-layered appearance. The model explains distinct features of the craters, including radial striations and their locations at middle or high latitudes.
A Western University-led team of geologists has solved the long-standing puzzle of the Martian meteorite age by directing energy beams at tiny crystals found in a Martian meteorite. The team discovered that the most common group of meteorites from Mars is almost 4 billion years younger than previously believed.
Researchers at Brown University found evidence of orographic precipitation causing water-carved valleys on Mars, indicating ancient snowfall. The study's findings shed light on early Martian climate and atmosphere.
The Curiosity rover has made high-precision measurements of Mars' atmosphere, revealing it was much thicker in the past. Heavy isotopes of carbon and oxygen were more abundant, indicating a warmer and wetter climate.
The Neutral Gas and Ion Mass Spectrometer (NGIMS) instrument on the MAVEN spacecraft will collect data on charged gas particles in Mars' upper atmosphere, helping scientists understand how the planet lost its majority of atmosphere. The data will also be used to build models of the Martian atmosphere billions of years ago.
Two university researchers argue that NASA's Planetary Protection protocols are overly restrictive and expensive, making missions to search for life on Mars unviable. They suggest revising policies to prioritize impact on planetary exploration while minimizing costs.
Scientists conducted a simulated Mars expedition in the Atacama Desert to test instruments for the 2020 mission. The dry run aimed to identify potential issues and improve performance, ensuring the success of future missions.
Scientists found that Martian meteorites and surface rocks have similar origins in the planet's deep interior, but surface rocks came from a more oxygen-rich environment. The researchers believe this was caused by recycling of oxygen-rich materials into the interior through subduction.
The autonomous robot will test technologies and techniques for exploring life on Mars, with a focus on gathering scientific data. Zoë is equipped with a one-meter drill to bore deep into the ground and analyze soil samples using instruments like the Mars Microbeam Raman Spectrometer.
Researchers found pebbles and sand with roundness similar to river stones, suggesting a river once flowed on Mars. The discovery provides strong evidence for the planet's past habitability.
A team of scientists from NASA's Curiosity rover mission has discovered ancient rounded pebbles on the Martian surface, formed only by water transport. This finding supports the prospect that Mars could have hosted life in the past.
The Southwest Research Institute-led Radiation Assessment Detector made detailed measurements of the energetic particle radiation environment inside the spacecraft, providing important insights for future human missions to Mars. The data show an average galactic cosmic ray dose equivalent rate of 1.8 milliSieverts per day in cruise.
The Mars Curiosity Rover has discovered strong evidence of flowing water on Mars, with rocks showing characteristics similar to those formed by rivers and streams. The findings suggest a warmer and wetter past environment on the planet, which may have supported life.
Researchers have found rounded pebbles on Mars that indicate flowing water, with sizes between 4-40mm. The findings suggest a prolonged warm period with flowing streams and a denser atmosphere, potentially making Mars habitable for microbial life.
A recent study published in Science provides insight into radiation hazards for deep space missions, including those to Mars. The research measures radiation exposure on the Curiosity rover's journey to and from Mars, revealing a significant risk to astronauts, with doses potentially exceeding career limits.
A bacterium discovered in the Canadian High Arctic can survive at –15°C, the coldest temperature ever recorded for bacterial growth. This microbe adapts to extreme conditions by modifying its cell structure and producing molecular antifreeze, providing insights into the possibility of life on Mars.
Researchers using NASA's HiRISE camera have identified almost 250 fresh impact craters on Mars each year, providing a more accurate measure of surface processes on the Red Planet. The cratering rate is estimated at an average of one per area roughly the size of Texas, offering insights into climate change and the planet's activity.
A team of scientists, including a Michigan State University professor, has examined a nakhlite meteorite formed on Mars over a billion years ago. The study found mineral and chemical signatures indicating terrestrial weathering, which could provide valuable clues about Mars' habitability conditions.
Researchers discovered that iron carbonyl is the main form of carbon trapped in magmas on Mars, releasing carbon monoxide and methane gases. This finding suggests that early Mars' volcanism could have released enough greenhouse gases to warm the planet significantly.
The Neutral Gas and Ion Mass Spectrometer (NGIMS) instrument has been successfully integrated to the MAVEN spacecraft, enabling measurements of Mars' upper atmosphere composition. NGIMS will analyze neutral and ionized gases, providing insights into atmospheric chemistry and potential microbial life.
The MAVEN magnetometer will study the planet's magnetic field to infer how the atmosphere evolved, helping answer why Mars became a frozen desert. By measuring sections of the planet's magnetic field, scientists can create a bigger picture of the overall atmosphere and understand its interactions with solar wind.
The ChemCam system has fired more than 40,000 laser pulses at over a thousand locations on Mars, yielding valuable information about the planet's habitat. Researchers from Los Alamos National Laboratory and other institutions will present their findings at the 44th Lunar and Planetary Science Conference.
The Particles and Fields Package has been integrated onto the MAVEN spacecraft, which will study the solar wind and ionosphere of Mars. The package includes six science instruments that can process up to one million events per second, measuring properties such as solar ultraviolet flux and energetic particles produced in solar storms.
Researchers found differences in core proteins from a microorganism that lives in a salty lake in Antarctica, enabling it to tolerate high salinity and desiccation. The study reveals potential adaptations for life on Mars, with scientists exploring the use of these protein modifications to engineer novel enzymes and catalysts.
Scientists have discovered buried flood channels on Mars using 3D reconstructions, suggesting recent hydrologic activity. The findings indicate that floods may have induced climate change in the past.
The Arizona State University Mars Education Program won the Science Prize for Inquiry-Based Instruction for its Mars Student Imaging Project, which lets middle-school students use a NASA spacecraft to take images of Mars and conduct real science research. Over 35,000 students have participated in the project since its launch in 2002.
A Mars research project led by American Association for the Advancement of Science (AAAS) has won the Science Prize for Inquiry-Based Instruction. Middle-school students from a small rural town in northern California used a camera orbiting Mars to conduct their own experiment and discover a new cave on the flanks of a Martian volcano.
Researchers from Brown University found fossilized conduits on Mars that suggest water once flowed beneath the planet's surface. The conduits, formed by underground cracks, indicate an active hydrology and a possible habitable environment.
Microorganisms have been found living in salt deposits of Río Tinto River in Spain, which share similarities with those on Mars. These discoveries provide crucial insights into the habitability potential of Mars and suggest that similar environments may exist elsewhere.