This paper deals with the occurrence of two boulders of bituminous sandstone which have been found in the glacial deposits of central Alberta. They occur mixed with other material that was carried ...
NASA's Perseverance rover, which has been on Mars since February 2021, recently found a light-colored boulder on the surface of Mount Washburn, a hill inside Jezero Crater. Measuring 18 by 14 ...
According to project researchers, the strange boulder may hint at new details about Mars' ancient past. The rock, dubbed ...