The Trump administration has ordered immediate rescheduling of medical cannabis to a less restrictive category, in what amounts to be a historic change to marijuana policy in the U.S.

A compass used by Lewis and Clark on their expedition to explore the American West is owned by the Smithsonian and is part of NPR's 250th anniversary series, America In Pursuit.

Utah's Great Salt Lake has been labeled an "environmental nuclear bomb" and it has the attention of the president of the ...