All articles tagged with #water on mars
Scientists discovered a new mineral called ferric hydroxysulfate on Mars, indicating the planet once had water, heat, and chemical conditions similar to early Earth, which suggests Mars may have supported life in the past and could potentially do so in the future.
NASA's Curiosity rover discovered a coral-shaped rock on Mars that formed billions of years ago when liquid water existed on the planet, indicating Mars once had a wetter environment. The rock's unique shape results from natural mineral deposits and erosion, providing evidence of ancient water activity on Mars.
Scientists have discovered nearly 10,000 miles of ancient riverbeds in Mars's southern highlands, indicating the planet was once much wetter than previously thought, with evidence suggesting regional rainfall or snowfall about 3.7 billion years ago. These findings challenge previous assumptions about Mars's arid history and imply a more extensive past presence of surface water.
China's Zhurong rover has discovered evidence of an ancient ocean shoreline on Mars, suggesting a massive body of water once existed in the planet's northern lowlands. Using onboard cameras and ground-penetrating radar, researchers identified features like pitted cones and sediment channels indicative of a coastline. This finding supports the theory of a Martian ocean during the Hesperian period, around 3.68 billion years ago, and raises questions about the potential for past life on Mars. However, some scientists remain skeptical due to erosion concerns.
China's Zhurong rover has identified features on Mars that suggest the presence of an ancient ocean in the planet's northern hemisphere, supporting the hypothesis that Mars once had significant bodies of water. The findings, based on geological observations and remote sensing data, indicate that this ocean existed around 3.68 billion years ago. While some scientists remain skeptical, the discovery adds to the understanding of Mars' water history and its potential to have supported microbial life. Future Mars sample return missions, including China's Tianwen 3, aim to provide more definitive evidence.
NASA's Curiosity rover has captured a stunning 360-degree panorama of Gediz Vallis on Mars, revealing a rocky terrain that may have been carved by an ancient river. Scientists are eager to gather clues about Mars' watery past and the possibility of it being once habitable, as well as the phases of water presence and disappearance on the planet. The rover's exploration of this region enriched with sulfates suggests that water may have returned to Mars fairly late in the story of Mount Sharp, indicating a changing climate on the planet.
New research suggests that the wet epoch on Mars may have been shorter than previously thought, as gullies previously attributed to water flow could have been formed by explosively evaporating carbon dioxide ice. This finding has implications for the search for life on Mars, as the presence of liquid water is crucial for the emergence and sustenance of living organisms. The study simulated Mars conditions in a lab and observed the sublimation of carbon dioxide ice, concluding that it can reshape the Martian landscape, potentially pushing the presence of water on Mars further into the past and reducing the likelihood of ancient life on the planet.
NASA's Mars Reconnaissance Orbiter (MRO) has captured images of unusual ridged lines carved into the Martian landscape, which are actually natural formations caused by the movement of ice on the planet's surface. The MRO's high-quality imaging capabilities aid in the search for water on Mars and provide valuable information for future missions. These ridged patterns, found in various regions on Mars, reveal the presence of ice and help scientists understand the planet's geological history. The MRO also monitors weather patterns and collects data on minerals and water for potential future crewed missions and astrobiological research.
NASA has released an animated video recreating the moment water broke into Mars' Jezero Crater, a region that may have once supported life. The Jezero Crater, a former river delta and lake, is being explored by NASA's Perseverance rover, which aims to study the region's formation, seek signs of past life, and collect rock and soil samples. The animation highlights the significance of the event that occurred billions of years ago and its potential implications for the existence of microbial life on Mars.
China's Mars rover, Zhurong, has discovered underground polygon structures beneath the surface of Mars using ground-penetrating radar. The polygons, likely formed by ice, were found in Utopia Planitia and suggest a wide distribution of similar terrain. The findings indicate the presence of water on Mars during the Late Hesperian–Early Amazonian eras, between 3.7 and 2.9 billion years ago. These discoveries provide further evidence of Mars' past water abundance and the potential for past life on the planet.
China's Mars rover, Zhurong, has discovered underground polygon structures beneath the surface of Mars using ground-penetrating radar. The polygons, likely formed by ice, were found in Utopia Planitia and suggest a wide distribution of similar terrain. The findings indicate the presence of water on Mars during the Late Hesperian–Early Amazonian eras, between 3.7 and 2.9 billion years ago. These discoveries provide further evidence of Mars' past water abundance and the potential for past life on the planet.
Scientists are still puzzled by several mysteries surrounding Mars. These include the bulgy southern hemisphere, the disappearance of water on the planet's surface, the presence of methane in the atmosphere, the history of the Martian cryosphere, and the planet's obliquity. These mysteries highlight the need for more data and research to understand the geological and climatic history of Mars, which could provide insights into the evolution of Earth-like climates and have implications for policymaking decisions on Earth.
A new method of analyzing Mars' gravitational force has provided support for the existence of an extensive ancient northern ocean on the planet. The research, led by Jaroslav Klokočník, used gravity aspects calculated from gravity anomaly measurements and topographic data from NASA's Mars Global Surveyor. The method improves upon previous approaches and has potential applications in various disciplines. The findings contribute to the ongoing search for water on Mars and the possibility of past or present life forms on the planet.
The Mars rover Curiosity has discovered evidence of seasonal floods on Mars, indicating that at least one part of the planet went through wet/dry cycles. The rover found hundreds of hexagonal-shaped rock deposits in Gale Crater, dating back to Mars' wet Hesperian period. These hexagons, formed by mud drying out and creating cracks, suggest repeated flooding events. The chemistry of the rocks supports this, with deposits of calcium and magnesium sulfates indicating the presence of water. This new evidence helps scientists understand the past environment of Mars and its potential for supporting life.