An unusual new rock collection discovered by NASA's Perseverance Mars rover suggests the Red Planet's ancient past was wet ...

In 1919, British astronomers Arthur Eddington and Frank Dyson organised an expedition to Príncipe, a forested fleck of land ...

Portland and Seattle have spent decades defining the Pacific Northwest aesthetic: indie coffee houses, moss-coated forests, gray skies that feel poetic, and craft beer culture that tourists can’t wait ...

In this Aug. 26, 2020, file photo a sign marking the boundary of the Crow Indian Reservation stands near Hardin, Mont. (AP Photo/Matthew Brown, File) A proposal by the Crow tribal chair could ...