Free alerts before meteor showers, ISS passes, eclipses, auroras, and more — personalized to your exact location.
Three steps. Under 30 seconds.
Just your address to get started — takes 5 seconds.
Pick from 7 sky event types and share your location so we know what's visible from your sky.
We email you about 1 hour before each event with exactly what to look for, where, and when.
A focused notification with everything you need — nothing you don't.