All posts tagged: mars exploration

New Study Uses AI to Reveal Dry Origins of Mars’ Mysterious Slope Streaks

New Study Uses AI to Reveal Dry Origins of Mars’ Mysterious Slope Streaks

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The origin of Recurring Slope Linea, the long, dark markings that stretches across the slopes of Martian surface for hundreds of feet, has been a topic of debate for a long time. They appear during warmer season and they were seen as one of the most compelling signs that liquid water might still exist on Mars, suggesting a rare pocket of habitability on an otherwise arid planet. However, this view has been challenged by a new study by a group of researchers Brown University and the University of Bern. Using machine learning and leveraging satellite images, they have found evidence about the dry processes being the origin of these streaks. Machine learning breakthrough brings new evidences According to Adomas Valantinas, a postdoctoral researcher at Brown who coauthored the research with Valentin Bickel, a researcher at Bern, a big focus of Mars research is understanding modern-day processes on Mars, including the possibility of liquid water on the surface. This study reviewed these features but found no evidence of water. Their model favours dry formation processes. Valantinas …

Astronauts’ Vision Problems Linked to Prolonged Space Exposure, Posing Risks for Mars Missions

Astronauts’ Vision Problems Linked to Prolonged Space Exposure, Posing Risks for Mars Missions

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Astronauts returning from extended space missions are reported to experience significant changes in eye health, linked to prolonged exposure to microgravity. Researchers have identified that the altered blood flow and pressure conditions in space can lead to vision problems. These changes are primarily associated with a condition termed spaceflight-associated neuro-ocular syndrome (SANS), affecting around 70 percent of astronauts during six- to twelve-month stays on the International Space Station (ISS). This raises potential challenges for longer missions, such as a journey to Mars. Study Identifies Key Ocular Changes According to a study published in the IEEE Open Journal of Engineering in Medicine and Biology, three critical ocular parameters were analysed: ocular rigidity, intraocular pressure, and ocular pulse amplitude. Measurements were conducted on data from 13 astronauts, whose missions spanned 157 to 186 days. The researchers observed a 33 percent reduction in ocular rigidity, an 11 percent decrease in intraocular pressure, and a 25 percent decline in ocular pulse amplitude. These findings indicate biomechanical changes in the eye, accompanied by symptoms such as reduced eye size, optic …

NASA’s InSight Mars Lander Captured with Dust Layers by Mars Reconnaissance Orbiter

NASA’s InSight Mars Lander Captured with Dust Layers by Mars Reconnaissance Orbiter

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NASA’s retired InSight Mars lander was recently spotted by the Mars Reconnaissance Orbiter (MRO) in an image taken on October 23, 2024, using its High-Resolution Imaging Science Experiment (HiRISE) camera. The image shows dust build-up on the lander’s solar panels, which now match the reddish-brown colour of the Martian surface. Reports suggest this observation continues to provide insights into the movement of dust and wind patterns on Mars. InSight’s Mission and Retirement The InSight lander, which touched down in November 2018, was central to detecting Marsquakes and studying the planet’s crust, mantle, and core. NASA officially ended the mission in December 2022 after the lander stopped communicating due to excessive dust accumulation on its solar panels. Engineers from NASA’s Jet Propulsion Laboratory (JPL) in California continued to monitor the lander for any signs of reactivation, hoping Martian winds might clear its panels. However, as per reports, no signals have been received, and listening operations will conclude by the end of this year. Tracking Dust Movement The new HiRISE images were captured to monitor how dust …

NASA Eyes Innovative Strategies for Mars Exploration Success by 2044

NASA Eyes Innovative Strategies for Mars Exploration Success by 2044

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A detailed plan outlining NASA’s Mars exploration strategy for the next two decades has been released. According to the report, titled Expanding the Horizons of Mars Science: A Plan for a Sustainable Science Program at Mars — Mars Exploration Program 2024-2044, prepared for NASA’s Science Mission Directorate, a series of transformative shifts in approach will be essential for future missions to succeed. The findings emphasise the need for innovative solutions and a departure from traditional methods to sustain Mars exploration efforts in an evolving space landscape. Core Focus Areas and Challenges The report highlights several key questions driving Mars research, including the evolution of the planet’s habitability and the possibility of past or present life. Accessing challenging terrains such as steep slopes, caves, or the southern hemisphere is noted as crucial for investigating potential oases for life. The document also stresses that human exploration of Mars, anticipated by the late 2030s, creates a narrow window for studying Mars in its pristine state. Emphasis on Cost-Efficient Missions A call for lower-cost missions forms a central theme …

NASA’s Ingenuity Helicopter May Become Weather Station for 20 Years on Mars

NASA’s Ingenuity Helicopter May Become Weather Station for 20 Years on Mars

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The Ingenuity Mars Helicopter, initially deployed by NASA to test the feasibility of powered flight on Mars, has been repurposed as a weather station following a crash that ended its flying capabilities, as per reports. According to updates shared during the 2024 Annual Meeting of the American Geophysical Union (AGU) in Washington, D.C., the helicopter suffered rotor damage during its 72nd flight on January 18, 2024. While the crash rendered it unable to fly, its onboard systems remain functional, offering the potential for continued data collection on Mars. Crash Investigation and Findings During the AGU presentation, Teddy Tzanetos, Ingenuity’s project manager at NASA’s Jet Propulsion Laboratory (JPL), explained in a statement that despite the crash, the helicopter’s avionics, batteries, and sensors are operational. He noted that she still has one final gift which is that she’s now going to continue on as a weather station of sorts, recording telemetry and taking images every sol. As per reports, investigations revealed that the helicopter’s navigation system encountered difficulties due to the uniform texture of the Martian terrain, …

NASA Investigates Ingenuity’s Last Flight, Explains Why it Crashed on its 72nd Flight

NASA Investigates Ingenuity’s Last Flight, Explains Why it Crashed on its 72nd Flight

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Engineers from NASA’s Jet Propulsion Laboratory (JPL) in Southern California and AeroVironment are conducting an extensive investigation into the final flight of the Ingenuity Mars Helicopter, which occurred on January 18, 2024. According to reports, the rotorcraft, initially designed for a short demonstration of aerial flight on Mars, exceeded expectations by completing 72 flights over nearly three years. Details from the investigation, which are set to be released in a technical report, aim to inform future aircraft designed for extraterrestrial exploration. Ingenuity’s Last Flight The 72nd mission was planned as a routine ascent to test systems and capture images, reportedly. Data indicates that the helicopter reached an altitude of 40 feet before descending. Reports reveal that communication with the vehicle ceased shortly after it landed. Images received days later confirmed significant damage to the rotor blades, bringing Ingenuity’s operational career to an end. Cause of the Incident According to reports, experts suggest that a lack of distinguishable surface features in Jezero Crater’s sand ripple terrain was the probable cause of the navigation system’s failure. Håvard …

Cosmic Rays Could Erase Signs of Life on Mars, Study Reveals

Cosmic Rays Could Erase Signs of Life on Mars, Study Reveals

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A study published in Astrobiology on November 13 has revealed the challenges posed by cosmic radiation in preserving potential traces of life on Mars. Researchers simulated the effects of cosmic rays on lipids, crucial molecular structures found in cell membranes. The findings indicate that lipids deteriorate rapidly when exposed to radiation, especially in salt-rich conditions. This adds to concerns about the preservation of biosignatures in regions on Mars that were once considered the most likely to host life. As reported Anais Roussel, an astrobiologist at Georgetown University, highlighted the issue of salt-rich environments on Mars. Roussel stated to Space.com, that they go for salt-rich environments, but they could be one of the most damaging under radiation. These findings raise concerns about whether the surface of Mars, constantly exposed to cosmic radiation due to the absence of an atmospheric shield, can protect molecular evidence of ancient life. Salt and Radiation: A Double Threat Research indicated that lipids exposed to simulated cosmic rays deteriorated significantly within the equivalent of three million years, with up to half the …

NASA’s Perseverance Rover Finds Organic Molecules on Mars

NASA’s Perseverance Rover Finds Organic Molecules on Mars

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NASA‘s Perseverance rover, currently exploring Mars’ Jezero Crater, has detected carbon-based molecules that may hint at ancient life on the Red Planet. These findings, reported last summer, were made using SHERLOC (Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals), an advanced instrument capable of identifying potential organic compounds. While the discovery has raised hopes within the scientific community, questions about its accuracy remain, as researchers consider alternative explanations for the data. Detection of Organic Molecules and Its Challenges The SHERLOC instrument utilises two techniques: ultraviolet luminescence and Raman spectroscopy. Dr Ken Farley, Project Scientist for the Perseverance mission, explained that SHERLOC can detect organic matter potentially present in Mars’ environment. Luminescence, while highly sensitive, lacks specificity, as non-organic materials can also produce similar signals. Raman spectroscopy provides more precise chemical fingerprints, but its sensitivity is limited. This combination allows researchers to hypothesise about the presence of organic molecules, but uncertainties in the data complicate definitive conclusions. Potential Alternative Explanations A study published in Science Advances posited that the detected signals could originate …