CAPE CANAVERAL, Fla — NASA is blaming unusually soft rock for last week’s sampling fiasco on Mars. The Perseverance rover came up empty after attempting to collect its first core sample on the red ...
WASHINGTON (Reuters) - Scientists using an ocean drilling vessel have dug the deepest hole ever in rock from Earth's mantle - penetrating 4,160 feet (1,268 meters) below the Atlantic seabed - and ...
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