For decades, the search for life beyond Earth has revolved around a key question: What molecules should scientists be looking ...

NASA's Curiosity rover has photographed extraordinary spiderweb-like formations on Mars that scientists believe could hold ...

New detection method: A study shows life leaves an organizational molecular pattern detectable through statistical analysis, not just specific molecules. Space mission potential: The method can use ...

The planet Mars is the most thoroughly surveyed celestial body aside from Earth itself. Generations of space probes and rovers like Curiosity have collected images and material samples of the red ...