After years of planning, bikepackers and gravel grinders will have a chance to ride from Mexico to Canada on the Great Plains ...

The country supports some of the world’s most important satellites. But experts worry about its proximity to Russia.

The U.S. Geological Survey has released a new assessment that concludes there are47 million barrels of oil and 876 billion ...

A South Dakota company earned the state’s blessing Thursday to take a formal step toward a large-scale gold mining permit in ...

Summit Carbon Solutions’ plan to build a pipeline across five states included the right to use eminent domain in some states.

Credit: REUTERS/Evelyn Hockstein While abortion is illegal in South Dakota, the state penalizes those who provide medical and surgical abortions rather than those who receive them. The abortion ...

An active-duty airman was arrested on Friday for allegedly killing a 21-year-old woman on an air base in South Dakota, according to the Pennington County Sheriff's Office. Quinterius Chappelle ...

An airman stationed at Ellsworth Air Force Base, South Dakota, has been charged with killing a woman who went missing in South Dakota about seven months ago. (Arielle Zionts /Rapid City Journal ...

"We now have the first outlines of a geologic map of the asteroid belt." Ten years ago, Jenniskens teamed up with astronomer Hadrien Devillepoix of Curtin University and colleagues in Australia to ...

Quinterius Chappelle was arrested on a federal charge of second-degree murder in the death of Sahela Sangrait, according to the Pennington County... Law enforcement authorities in South Dakota say ...

More accurate maps based on data from the SWOT mission can improve underwater navigation and result in greater knowledge of how heat and life move around the world's oceans.