![Walkabout the Galaxy show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/079/180/small/walkabout-the-galaxy.jpg)
Summary: The astroquarks have often wondered where all our alien friends are hanging out. Maybe they're all just in a different universe? Well, most of those universes are probably duds, and anyway, we'll never know! That's the whole definition of a universe. New research sheds light on the surprisingly small role dark energy plays in the early evolution of a universe, and then there's the question of AntMan and the Wasp: do they conserve mass or not when they shrink? We must know!