What's in baseballs, and can materials explain a spike in scoring?
10 baseball games to play in at-home quarantine while waiting for MLB to return - CBSSports.com
Changes in baseball chemistry could contribute to rise in home runs
Amazon.com: Diamond Sports Flex-Ball Low Impact Safety Little League Tee Balls for Kids Baseball (3-Pack): Sports & Outdoors
Balls | Better Baseball
MLB: 7 alternatives to the MLB juiced balls that are cheapening homers
Why Training with Heavier or Lighter Baseballs Could Help Pitchers Throw Faster | Inside Science
Baseball Training Balls
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Yes, the baseball is different — again. An astrophysicist examines this year's baseballs and breaks down the changes – The Athletic
What Are Baseballs Made of? | Wonderopolis
We X-Rayed Some MLB Baseballs. Here's What We Found. | FiveThirtyEight
The Physics of Cheating in Baseball | Science | Smithsonian Magazine