In 1974, the Betz family discovered a metal sphere that could move on its own after a brush fire burned through their property. They soon regretted bringing the sphere, known as the Betz sphere, home with them. The US Gov. eventually took the Betz sphere

In 1974, the Betz family discovered a metal sphere that could move on its own after a brush fire burned through their property. They soon regretted bringing the sphere, known as the Betz sphere, home with them. The US Gov. eventually took the Betz sphere