📷 Image Credits: The Indian Express
The quest to discover water on Mars has been a long-standing goal for scientists, driven by the hope of finding clues to the planet’s habitability. While the presence of oceans on Mars in the past hints at the possibility of liquid water, the challenge remains in uncovering any traces of it that may be hidden underground. Researchers from Penn State University have put forth a novel proposition – by studying marsquakes on the red planet, they believe they may be able to detect liquid water buried deep beneath the Martian surface.
The team led by Nolan Roth, a doctoral candidate in the Department of Geosciences at Penn State, suggests that seismic waves generated by marsquakes passing through aquifers underground produce electromagnetic signals. These signals, if detected on Mars, could provide crucial insights into the presence of water miles beneath the planet’s surface. This innovative approach, known as the seismoelectrical method, is currently being tested on Earth to detect underground fluids. However, the unique conditions on Mars, with dry layers of rock and dust above the groundwater, offer a promising environment for this technique to be effective.
According to Roth, the signals generated by marsquakes passing through water would be distinct and indicative of the presence of modern-day water on Mars. While previous theories suggest that Mars once harbored oceans that dried up over time, the notion of water being trapped in the subsurface has piqued the interest of researchers. By harnessing data from NASA’s Insight Lander, equipped with a seismometer and a magnetometer, the team aims to further explore the potential of this method in detecting Martian groundwater.
The use of a dedicated magnetometer in future Mars missions could enhance the accuracy of detecting seismoelectrical signals, offering valuable insights into the presence of water on the red planet. As scientists delve deeper into analyzing the data collected on Mars, the possibility of unraveling the mysteries of Martian aquifers and understanding the evolution of water on Mars over billions of years becomes more tangible. The study not only holds significance for Mars exploration but also opens doors for similar techniques to be applied in planetary geophysics beyond Mars, hinting at a broader potential for understanding celestial bodies in our solar system.