With funding from ARPA-H, three teams of researchers have regrown bone and cartilage, even entire knees, in animal studies. Human trials are not far off.

A classically-trained violinist, she incorporated traditional instruments native to Latin America in Western-style scores to create an atmospheric hybrid.

A news report linked Representative Tony Gonzales of Texas, who has admitted to an affair with an aide, to another series of sexual texts with a different aide, raising a dilemma for the House G.O.P.