Credit: The Medrobotics Flex robot includes a camera, light and instruments to cut, extract, cauterize and do sutures. (Courtesy George Washington University)

Flexible robot snakes into colon for surgery

Sustaining fashion: New exhibit shows clean take on dirty industry

Seeing red (in a good way): ‘Ruby’ chocolate revealed

More than 100 DC pets adopted after Erica and Max Scherzer cover fees

Va. mattress maker Leesa gets West Elm retail deal

Nationwide race honors 9/11 heroes, other service members