The strongest hints yet that Mars once hosted living microbes are no longer theoretical models or ambiguous chemistry. They are etched into a single, oddly speckled rock in an ancient riverbed, where ...

Scientists Find Signs That Mars May Once Have Been Covered by an Ocean ...

The discovery is based on previous Curiosity findings revealed since 2018 about basic organics found on Mars though the quantity of such findings is comparatively huge this time.

Taking a new look at a very old mudstone on Mars, scientists believe they have found a potential biosignature, indicating that Mars may have once hosted life. In July of 2024, while exploring an old, ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Ancient shoreline features ...

Mars, the planet we see today—arid, cold, and covered in red dust—may have once been a "blue planet" with a vast ocean that covered the entire Northern Hemisphere.

CAPE CANAVERAL, Fla. — NASA says a rock sample collected by its Perseverance Mars rover in the Jezero Crater may contain evidence of ancient microbial life on Mars. The rover discovered a rock ...

Scientists believe these rocks were formed by ancient rainfall, similar to how they form in tropical climates on Earth. The discovery adds to the evidence that Mars may have once been a habitable ...

New research has mapped 16 extensive, interlaced river systems on Mars, dating back approximately 3.7 billion years to the Early Hesperian Period. These large river systems, despite covering only ...

Scientists suspect that the surface of Mars was once teeming with water, a lush oasis full of river systems and lakes — until a dramatic change in the planet’s magnetic field caused it to lose most of ...