Planetary geologists reply that these impressions usually result from pareidolia, the tendency for the brain to see familiar shapes in random patterns, a tendency Carl Sagan long ago called an ...

The barren red deserts of Mars might not be as lifeless as they seem. A growing number of researchers are pointing to strange geometric formations captured in NASA images as potential evidence of an ...

NASA has captured an image of a coral-like rock on Mars estimated to be several billions of years old. The space agency's Curiosity Rover sent back images of a small, wind-eroded rock that resembles a ...

Ancient organisms may have left microscopic "biosignatures" on Mars. That's according to NASA scientists, who say a rock ...

The odds for life existing on other planets has just skyrocketed after a NASA rover unearthed new evidence on Mars. The odds ...

Prize: NASA could offer a prize—say $3 billion to the first company and $1 billion to a second company—for delivering ...

NASA may have found its most compelling evidence yet that Mars once supported life. A sample collected by the Perseverance ...

Scientists believe intriguing leopard spots on a rock sampled by the Perseverance rover on Mars may have potentially been ...