NASA's Perseverance rover has encountered another rock on Mars that has left scientists puzzled.

A feature showing layers of soil, a rocky outcrop and a layer of coal in the earth's crust with fossilised plants will then reveal the hidden world of carbon underground. There will also be a dry ...

The St. Pauls Bay rock is located on the slopes of the Witch Hazel Hill area, a scientifically significant rocky outcrop spanning more than 330 feet (101 meters), with each of its rock layers ...