What happens when a Brownie Troop goes to a weather balloon launch? One Brownie guesses that they’ll make contact with unicorns in the sky. Atmospheric scientist Gary Morris shows us what it takes to launch the biggest balloon you’ve ever seen to the very top of Earth’s atmosphere. Along the way, we’ll learn why weather balloons are the best way to find out about air pollution. And who knows? Maybe we’ll discover unicorns, too! This story came together when a Brownie troop leader emailed Tumble to see if we could do an activity with the girls. We’re always open to new experiences, so don’t hesitate to reach out to us at tumblepodcast@gmail.com. Do you love what we do, and want to make sure there’s more episodes of Tumble forevermore? Support us on Patreon at patreon.com/tumblepodcast. Each pledge makes a HUGE difference to us, and we really appreciate it! Plus, you get sweet rewards - like access to our entire catalog of educational resources! To learn more about Tumble, visit our website at tumblepodcast.com. Or, you could swing by bestrobotever.com and find our podcast friends from Gen Z Media! They have great audio fiction like Mayan Crystal, The Alien Adventures of Finn Caspian, and more.