Astronomers have discovered a smiley-face-shaped structure on Mars - and it could be more than just a planetary quirk. Researchers believe that it may be harboring signs of past life on the Red Planet ...

Landing humans on Mars could teach us whether life ever existed beyond Earth, how planets change over time, and how humans can live on other worlds. By studying Mars up close, astronauts could answer ...

On Mars, it’s the little things that hint at past life. In 2025, tiny details in rocks across the Martian surface have revealed some of the most exciting clues yet that there may once have been ...