Scientists from Brown University have conducted a study suggesting that gullies on Mars may have formed from periods of liquid meltwater resulting from melting ice on and beneath the planet's surface. By simulating conditions on Mars, the researchers found that when the planet tilts on its axis to 35 degrees, the atmosphere becomes dense enough for brief episodes of melting to occur at gully locations. This study fills in gaps in understanding how these gullies formed and raises questions about the potential for life on Mars.
NASA's Curiosity rover faced its toughest climb yet on Mars as it attempted to ascend a slope with a sharp 23-degree incline, slippery sand, and wheel-size rocks. The rover experienced several unexpected stoppages, or faults, during the challenging climb. However, the team of rover planners at NASA's Jet Propulsion Laboratory successfully navigated the obstacles and guided Curiosity to investigate a location called "Jau," which is filled with dozens of impact craters. This pit stop is part of the rover's journey into the foothills of Mount Sharp, where each layer of the mountain provides insights into Mars' ancient climate and changing landscape over time. Despite the challenges, Curiosity continues to explore and will soon venture to a new area higher up on Mount Sharp.
