NASA’s Perseverance rover has found a never-before-seen dark rock named Skull Hill in Jezero Crater, offering new clues about ...

Skull Hill is a type of "float" rock — one that likely originated elsewhere and was transported to its current location.

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 ...

A trio of researchers has found evidence of the impact of the Late Antique Little Ice Age on Iceland almost 1,500 years ago.

Pennsylvania has 121 state parks, but somehow Salt Springs remains the quiet achiever, the unassuming middle child who ...