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

From lava tubes on Mars to ice pockets on Europa, subterranean environments may offer the best chance of finding life—and living safely—beyond our planet. “I was like, ‘OK, I'm pretty sure that ...

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 ...

NASA's Curiosity rover has found DNA-like molecules and space-rock chemicals on Mars, proving the Red Planet could have preserved ancient signs of alien life ...