The Pliocene epoch, which lasted from 5.3 million to 2.6 million years ago, was a consequential time in Earth's history. The Isthmus of Panama formed, connecting North and South America, and the ...

China’s space program has long been one of the most ambitious in the world, and its upcoming Chang’e-7 mission to the moon’s ...

Arctic daily sea ice extent continued to hover near record daily lows in January, with the ice edge well northward of its ...

City officials notified the Federal Aviation Administration, suggesting there are suspicions it was a rare “blue ice” ...