Clear and definitive evidence of liquid water, not just ancient ice, found on Mars

New evidence from NASA's Curiosity rover shows that Mars had shallow, ice-free lakes 3.7 billion years ago, indicating a warmer and thicker atmosphere. The discovery of wave ripples in Gale Crater suggests the presence of open water, extending the potential window for microbial habitability on Mars. This finding also provides valuable information for future explorers and offers insights into the planet's climate history.