Skylights, openings in the surface of Mars that descend down into caves, have been found on Mars, along with signatures for ...

A mudstone sample from Jezero Crater shows textures and minerals that on Earth often form through microbial activity. Scientists caution that nonbiological processes could also explain the features, ...

Scientists from New York University Abu Dhabi (NYUAD) have uncovered new evidence that water once flowed beneath the surface ...

A long time ago, life left microscopic signatures on Mars — or did it? That's the question NASA scientists have worked for years to answer. On Wednesday, NASA researchers said the answer might be in a ...

“Every interstellar comet so far has been a surprise,” said Dr. Zexi Xing of Auburn University, looking back on the wide variety of objects that have wandered into the solar system from far-off star ...