Ryan Michael English, who goes by Riley English, was arrested Monday and remained in custody after her initial court appearance on Thursday.

Robert Santos, who emphasized inclusivity and outreach to overlooked communities, has decided to resign as director of the U.S. Census Bureau, midway through his five-year term and in the midst of ...

But how well do you really know our planetary neighbor? This quiz of 15 questions will test your knowledge of Mars' size, surface and history, as well as scientists' attempts to study it. Remember to ...

We acknowledge Aboriginal and Torres Strait Islander peoples as the First Australians and Traditional Custodians of the lands where we live, learn and work.

We acknowledge Aboriginal and Torres Strait Islander peoples as the First Australians and Traditional Custodians of the lands where we live, learn and work.