Yet according to veterinarians, tennis balls can pose real harm to your pet. “Excessive chewing on the felt [of tennis balls] ...

All this time you’ve been holding and hitting tennis balls, and yet you didn’t know about the incredibly complex process behind making them look, act and feel so right. Filmmaker Benedict ...

For tennis ball machines to shoot balls with perfect accuracy and at nearly 100 miles per hour, it takes a series of carefully calibrated parts working together. Here's what it looks like inside.

What are tennis balls made of? Modern tennis balls are made of a hollow rubber core, covered in a wool or nylon shell which is known as the nap. Pressurised air inside the rubber core makes the ball ...