A new study analyzing seismic data from NASA's InSight lander has increased the possibility that life might still exist on Mars today. Researchers Ikuo Katayama and Yuya Akamatsu found unusual seismic wave behavior 10 to 20 kilometers beneath the surface, which they believe indicates the presence of liquid water—not just changes in rock porosity or chemistry, as previously thought. Since liquid water is a key ingredient for life, this raises hopes that living organisms could exist underground, sheltered from the planet's harsh surface. While finding evidence of past life on Mars remains a focus, this discovery highlights a promising new target for the search for life—though accessing these potential water reservoirs remains a significant challenge.