Do you like clouds? Like to help scientists look at MODIS data a little differently…from below? Then join citizen scientists around the globe in the Fall Cloud Challenge. Download the GLOBE Observer app, after registering, tap the clouds protocol icon, and then follow the prompts within the app. Before you know it, you’ll be a cloud expert and be providing valuable data from the ground about what’s up in your sky. The Fall Cloud Challenge runs October 15 – November 15, 2019.