The experts consulted for this story do not necessarily endorse the products ahead unless otherwise noted. Dogs and tennis ...

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 ...

Finley, a New York-based golden retriever, started carrying six tennis balls in his mouth at once back in 2017 but didn't make his debut in the Guinness World Records book until this year Kelli ...

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 ...

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.

In terms of physics, a given ball will fly faster in humid air than dry air, because it is less dense. But a tennis ball has an outer layer of felt, which absorbs water molecules as it travels ...