Organic molecules found by the Curiosity rover are too common to be explained by any process we know, other than life, according to a new study. That, of course, doesn’t rule out the possibility that ...

Fifty years ago, NASA’s Viking missions to Mars made groundbreaking attempts to detect life on the Red Planet. While the missions initially returned negative results, a new study published in the ...

Two NASA rovers have strengthened the case that ancient Mars may have supported life. While not evidence of life, these discoveries show that ancient Mars had complex organic chemistry, long-lasting ...

The redemption of Viking: Did the 50-year-old mission to Mars find life or not? How NASA’s 1975 mission to Mars led to decades of scientific controversy and confusion over the existence of life on ...

What was the planet Mars like in the past? Was it a dry desolate world like the one we see today, or was it a watery oasis filled with oceans, lakes, and rushing rivers? Was it Earthlike? Dean Regas ...