Flyby — ISS & Launch Tracker

Weather Forecasts — see sky conditions for every launch and pass, so you know before you head out whether clouds will block your view. Logbook — record every launch and pass you witness, build an observing streak, and look back on everything you've spotted. Daylight & Visibility — know whether a launch happens at night, twilight, or daytime, and when a twilight launch might produce a glowing "jellyfish" exhaust plume. Richer Launch Details — launch windows, providers, vehicle specs, and pad info in one redesigned view. In-App Glossary — tap the (i) next to any term for a quick, plain-language definition. We also sharpened visibility timing and made notifications more reliable — the "visible at T+" time in the app now matches your alerts to the second, for launches and Starlink passes alike.