Articles tagged with Mars
Newly discovered layers of ice on Mars reveal a record of past climate and could hold the key to understanding if the planet was ever habitable. The ice reserves are estimated to be as much as 90% water, equivalent to a global layer 1.5 meters deep.
Scientists at the Swedish Museum of Natural History have compiled an atlas of fossils in volcanic rock to guide where and what to look for in the search for Martian life. The atlas aims to identify which types of microorganisms are most likely to have been preserved on Mars, based on their metabolism and geochemical conditions.
Numerical modeling explains the escape of hydrogen atoms from Martian atmosphere into outer space due to water photodissociation. Seasonal winds and dust storms affect water circulation, but not in an obvious way.
UTSA joins NASA's Resilient ExtraTerrestrial Habitats institute (RETHi) to advance space smart habitat designs for deep space habitats, leveraging expertise in civil infrastructure with advanced technology fields.
Researchers from USC Arid Climate and Water Research Center discovered that deep groundwater likely exists in a broader geographical area than previously thought, with an active system as deep as 750 meters. Groundwater is believed to originate surface streams in near-equatorial areas on Mars.
A new publication outlines objectives for Mars Sample Return campaign, providing a blueprint for answering key questions about Mars. The University of Alberta is home to a vast collection of meteorites and experts like Chris Herd emphasize the importance of returning samples from Mars with context.
Researchers found that Mars' rivers were twice as wide as those on Earth and had intense flow persisting until one billion years ago. This suggests a global, long-lived phenomenon of climate-driven precipitation during low-atmosphere conditions on Mars.
A new study by UChicago scientists found significant river runoff persisted on Mars later into its history than previously thought. The intense runoff, which was wider than those on Earth today, occurred at hundreds of locations and suggests a complex climate with strong greenhouse effects.
The study focused on the design and results of the second field deployment of BASALT, identifying critical capabilities needed for science-driven EVAs. Researchers presented recommendations for future directions and subsequent research objectives.
Researchers are investigating ways to conduct meaningful science and send valuable information back to Earth in the harsh Martian environment. Scientists have simulated mission conditions using basalt samples from Idaho and Hawaii, seeking clues to the ongoing search for life on Mars.
A new paper proposes specific scientific objectives for a Mars Sample Return campaign to address fundamental questions about the planet. The study identifies critical measurements that would need to be done on returned samples to maximize their scientific value.
Researchers at Northwestern University are developing a predictive model to help NASA assemble ideal teams for the Mission to Mars. The study, conducted in two analog environments, reveals that crews experience diminished abilities to think creatively and solve problems, with successful task completion rates between 20-60%.
A new study argues that recent magmatic activity must have occurred underneath the surface of Mars for liquid water to exist beneath the kilometer-and-a-half thick ice cap. The research suggests that volcanic activity in the planet's subsurface could be providing heat to generate liquid water today.
NASA's MAVEN mission is shrinking its Mars orbit to prepare for the upcoming Mars 2020 rover launch. The spacecraft will tighten its orbit from 3,850 to 2,800 miles above the surface, allowing it to circle Mars more frequently and communicate with rovers more often.
Scientists have made the first surface gravity measurements on a planet other than Earth using NASA's Curiosity rover on Mars. The rover's accelerometers, used for navigation, were calibrated to measure subtle changes in gravitational acceleration, providing new information about the subsurface of Mars.
Researchers repurposed data from NASA's Curiosity rover to measure the gravitational tug of Martian rocks, finding that lower slopes of Mount Sharp have lower density rock layers than predicted. This challenges a competing theory suggesting Gale Crater was once completely filled with sediment and excavated by erosion.
A new study uses computer models to simulate debris movement and recreate the puzzling patterns of grooves seen on Phobos. The model suggests that boulders blasted free from an ancient asteroid impact created the distinctive feature.
New research found that overflowing crater lakes on Mars carved canyons rapidly, possibly in weeks, using high-resolution satellite images. This process likely played a major role in shaping Mars' surface without plate tectonics.
Recent rainfall in the Atacama Desert has caused widespread devastation among local microbial species, with 85% extinction rate reported. This study provides crucial information for understanding the microbiology of extremely arid environments and its implications for the search for life on Mars.
Researchers transformed a Martian sunrise photo into a two-minute piece of music, with quiet harmonies and brighter sounds created by the sun disk. The work showcases image sonification's potential in analyzing planet surfaces and atmospheres, as well as health science applications.
Researchers identified four units with different deposition types, including conglomerates and ridges formed by moving water. The Martian deposits are similar to those found in Earth's Channelized Scablands and suggest large-scale global ice and dramatic outburst floods.
Scientists analyzed three Martian meteorites to find electrochemical reactions between briny liquids and volcanic minerals created the organic carbon. This process has implications for understanding habitability and could occur elsewhere in the solar system.
A new study published in the American Journal of Clinical Nutrition found that cocoa flavanols, especially (−)-epicatechin, improve blood vessel function and lower blood pressure. Flavanol-only groups experienced all benefits, while procyanidin-enriched extracts showed reduced cholesterol without improvements in vascular effects.
Astrophysicists estimate that Centaurs will have close encounters and impacts with terrestrial planets, potentially producing catastrophic events. The researchers found that half of the Centaurs can enter the terrestrial planet region, and about 7% can interact with them.
Researchers at UCF developed a scientifically based method for creating Martian and asteroid soil simulants. The team published their findings in the journal Icarus and is now selling the simulant, which can be used for experiments on Earth.
Researchers found that installing small hexagonal structures called 'spiders' across 5 acres of reef increased live coral cover from less than 10% to over 60%. This cost-effective method has the potential to inform other large-scale coral reef restoration efforts.
Researchers at MIT have developed a software tool that automatically generates maps of favorable landing sites on Mars, taking into account scientific priorities and engineering constraints. The program uses fuzzy logic to deal with imprecision in the data and can explore different landing and exploratory scenarios.
The presence of methane on Mars presents novel challenges to explain its formation and implications for potential life on the planet. Researchers recommend further studies to clarify geochemical processes and sources of methane.
A new study reveals that ancient Mars likely had an ample supply of chemical energy for microbes to thrive underground. The researchers estimate that hydrogen concentrations in the crust around 4 billion years ago would have been sufficient to support microbial life.
A University of Manchester PhD student has developed a flexible heat shield that utilizes centrifugal forces to stiffen lightweight materials, reducing the need for heavy machinery and enabling low-cost scientific research and recovery of rocket parts. The prototype's design uses aerodynamic drag to slow down during atmospheric entry, ...
A 20-kilometer-wide lake of liquid water has been detected beneath Mars' southern ice cap using the Mars Advanced Radar for Subsurface and Ionosphere Sounding instrument. The presence of dissolved salts could lower the melting point, allowing the lake to remain liquid
Scientists have discovered that Mars' massive dust storms originate from a single geological formation near the equator. This vast deposit, called the Medusae Fossae Formation, has been eroding over time and polluting the planet with fine, powdery dust particles.
The MAVEN spacecraft has found a new type of Martian aurora that occurs over much of the day side, where auroras are hard to see. Protons 'steal' electrons from Mars' outer atmosphere, creating ultraviolet light and depositing energy.
The Black Beauty meteorite contains rare zircon with high hafnium levels, providing a temporal framework for Martian crust formation. This study suggests that Mars had a solid crust within 20 million years of solar system formation, potentially hosting oceans and life.
A recent study suggests that Mars' river networks were shaped by superficial run-off of rainwater, contradicting previous hypotheses about groundwater seepage. The researchers found similarities in the branching angles of Martian valleys with those in arid landscapes on Earth.
A massive Martian dust storm has engulfed the planet, prompting NASA's Opportunity rover to suspend science operations. However, Curiosity remains largely unaffected due to its nuclear-powered battery. The storm has grown to a 'planet-encircling' size, with atmospheric haze blocking sunlight at Gale Crater.
Researchers used Mars-inspired tools to map the Himalayas, revealing details about rock types and fault systems. The study used thermal infrared spectrum analysis to create colorful images of different rock types, providing new insights into the region's geology.
The discovery of ancient organic molecules in Martian sedimentary rocks increases the chances of finding evidence of habitability and potential life on Mars. The findings suggest that NASA's Curiosity rover may have discovered record-breaking amounts of organic carbon, comparable to those found in meteoritic samples.
New research published in Icarus suggests Mars had a cold and icy ancient climate, with evidence of volcanism interacting with ice sheets. The findings identify three distinct mineral combinations associated with glaciers, providing insight into the planet's past.
The Curiosity rover has discovered a seasonal cycle in Martian methane levels, suggesting it may be trapped in water-based crystals. Additionally, the rover has detected ancient organic matter, including thiophene and methanethiol, which are reminiscent of Earth's organic-rich sedimentary rock.
A new data-mining technique developed by Carnegie's Shaunna Morrison improves the understanding of Mars' geologic history and habitability. By analyzing mineral compositions and unit cell dimensions, scientists gained a more detailed picture of Martian minerals, including their origins and alteration processes.
Researchers suggest iron-rich rocks near ancient lake sites on Mars could hold clues to past life, with sedimentary rocks rich in iron and silica being the most promising candidates for fossil preservation. This study aims to aid NASA's next rover mission by identifying the best places to search for evidence of ancient life.
A team of astronauts working together for months in a confined space will be critical to Mars mission success. The psychology of teamwork is crucial, with characteristics such as emotional stability, agreeability, and resilience being key factors.
Researchers found traces of fatty acids in Dorset's acidic streams, mimicking conditions on Mars billions of years ago. They believe these findings could indicate nearly 12,000 pools of organic matter on Mars that represent past life.
A University of Oklahoma astrophysics team discovered that the growth of Mars was halted by an orbital instability among the outer solar system's giant planets. The study used computer simulations to show how this instability, linked to the Nice Model, prevented Mars from becoming a larger, habitable planet like Earth.
A recent study suggests that early Mars was modestly warm and prone to rain, with only small patches of ice. The research challenges the long-held idea of an icy climate on Mars.
Researchers found a single species of bacteria in Laguna Caliente lake water, a toxic environment that resembles ancient Mars hot springs. This discovery may help scientists searching for signs of life on Mars.
A University of Cincinnati geology student, Andrew Gangidine, is developing a marker for ancient bacterial life on Mars to aid NASA's search. He's studying microbial life in silica hot springs at Yellowstone National Park to create a useful indicator of life on the red planet.
A machine learning approach developed for Mars feature mapping has been adapted to assess the effect of treatments on tumors. The technique provides a four-fold increase in precision and enables researchers to present findings with confidence.
A new study confirms desiccation cracks on Mars provide evidence of drying, revealing the shape of water on the red planet. The research sheds light on Mars' ancient climate and provides context to its lacustrine system.
A new model predicts that the Martian moons Phobos and Deimos were formed from debris left over after a large impact between proto-Mars and a dwarf-planet-sized object. The model suggests that the moons' compositions will be similar to Mars, but they are expected to be dry due to lost water vapor.
Elon Musk presents an updated design for the Big Falcon Rocket, a powerful rocket intended to propel a space vehicle to the International Space Station and beyond. The BFR's updated design includes a huge carbon fiber tank and new fueling system to lower costs and achieve rendezvous and docking.
A new scenario proposes that Mars' oceans formed several hundred million years earlier than previously thought, linking their existence to the rise of the solar system's largest volcanic system, Tharsis. The model suggests that global warming and volcanic eruptions played a key role in allowing liquid water to exist on Mars.
Researchers have discovered that specialized bacteria can live in the soil of the Atacama Desert, going dormant for decades without water before reactivating and reproducing when it rains. This finding suggests that life could be lurking on Mars, where similar conditions exist.
Researchers are using a $349,520 grant to analyze fragments of the Tissint meteorite from a Martian volcano, shedding light on the red planet's geological history and potential signs of life.
The James Webb Space Telescope will study Mars' transition from wet to dry, revealing clues about the planet's past and present habitability. The telescope will also analyze the abundance of water and methane in the Martian atmosphere, shedding light on the origin of these gases.
NASA is developing a planetary wind lidar called MARLI, which will provide detailed information on winds on Mars and Titan. The instrument will use laser pulses and detect returning backscatter signals to measure wind velocities and aerosol distribution.
Recent publications by Dr. Joseph Michalski and colleagues cast doubt on the idea of surface life evolving on Mars due to extremely cold and dry climate conditions. However, they suggest subsurface life is a promising option, focusing exploration on hydrothermal deposits.
The ExoMars joint space mission involves two phases, the first launched in 2016 with Schiaparelli lander and Trace Gas Orbiter (TGO), while the second phase is scheduled for 2020 with a new lander and rover.
Researchers from McGill University develop a miniature life detection platform to identify and analyze microorganisms in extreme environments, providing proof-of-concept for direct life detection on Mars and other planets. The technique has potential applications on Earth, including detecting pathogens during epidemics in remote areas.