Sometimes, when I make popcorn in the microwave oven, the house travels to another galaxy.
Microwave popcorn packages are actually gateways to similar packages in other galaxies, that can be traversed via wormholes. When you place your popcorn package in the microwave and turn it on, the wormhole is established, and the unpopped kernels in your bag exchange places with the popped kernels in the package in the other galaxy.
The "popping" sound you hear is when a kernel breaches the gateway at your end and enters the local package.
Butter is used as the hyperspace lubricant. Be sure to use enough butter.
Mine just goes back to Roswell in June 1947.