Meet Angel, a two-and-a-half-year-old petite pitbull who loves playing with toys, fetching tennis balls and taking walks.

Heading out to the court this summer for some tennis action? Tennis is fun, but having to negotiate racquets, balls and ...

The lightweight, 15-pound Tenniix tennis robot mimics pro playing styles like Nadal and Federer, using AI trained on 8,000 ...