NASA has found a rock on Mars that it has dubbed Skull Hill. The rock is known as a "float rock," and NASA has no idea where it came from.

NASA's Perseverance rover has spotted an oddball rock in an ancient river channel on Mars. Deputy project scientist Katie Stack Morgan explains. Credit: NASA/JPL-Caltech/ASU/MSSS ...

NASA's Mars rover Perseverance has been exploring the surface of Mars since 2021, and throughout its travels in the Jezero Crater, it has encountered many different rocks, geological formations ...

NASA's Perseverance rover is digging deeper into Mars' geologic past as it begins grinding into rock surfaces to expose ...

Nasa rover spots strange Martian rock that looks like ‘chocolate cake’ Rock formation resembles layered cake that has icing picked off ...

The rock, studied by NASA’s Perseverance rover, has been closely analyzed by scientists on Earth who say that nonmicrobial processes could also explain its features.

Curiosity made the discovery while going "off-roading," per NASA, in a valley called Gediz Vallis that snakes down Mount Sharp, an enormous crater that forms a 3.4-mile peak in its center.