Megamasers are astronomical phenomena that may mean galaxies have collided in the distant reaches of the universe. Learn more in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/megamaser-news.htm

Could the Bird Flu Cause a Human Pandemic?
14:57

Where Do Butternut Squash Come From?
10:07

How Did the Great Stink of London Work?
12:10