Though the Farmers' Almanac predicts a warmer-than-normal spring, the winter weather will linger for a while longer, the ...

When Floyd Collins ventured into Sand Cave in Kentucky on Jan. 30, 1925, he was searching for the next big attraction. But he ...

Hubbard, who first joined the USGS as a postdoc, is part of the agency’s Earth Mapping Resource Initiative (Earth MRI).

Rivers began pumping weathered material into the sea about a billion years after Earth formed, suggesting continents may have gotten an early start.