![Weekly Space Hangout Audio show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/064/343/small/weekly-space-hangout-audio.png)
Summary: One of the big mysteries in astronomy is what happened to all the antimatter? Is it possible that it’s actually still out there, in huge antimatter galaxies?
Summary: One of the big mysteries in astronomy is what happened to all the antimatter? Is it possible that it’s actually still out there, in huge antimatter galaxies?