WASHINGTON — A man who battled childhood cancer received the first known transplant of sperm-producing stem cells, in a study ...

Down on hands and knees in the Alamodome, workers lurched forward to generate enough leverage to slide one large wood panel alongside another. Nearby was a 15-pound sledgehammer at the ready for a few ...

US stocks plunged in after-hours trading Wednesday as investors digested President Donald Trump’s decision to impose sweeping tariffs that could escalate a growing trade war and ...