Space and sky tools
Free interactive tools for skywatchers and space fans, computed for your location and time zone: tonight's Moon, the rocket launch schedule and the guides behind them.
Live tools
Computed for your location and time zone, as you look.
Moon phase today
Tonight's Moon for your location: phase, illumination, moonrise and moonset, and the full Moon calendar.
Live toolPlanets visible tonight
Which planets you can see tonight from your city, where to look and when, planet parades and the year’s planet events.
Live toolNorthern lights tonight
Will the aurora reach you tonight? NOAA's live forecast for your city: the aurora oval, the Kp you need and when it gets dark.
Live toolISS tracker
Where the International Space Station is right now, its track on the map, and when you can see it from your city.
Live toolRocket launch schedule
Every orbital launch scheduled worldwide, with the rocket, the launch site and the latest status, refreshed every few minutes.
Sky guides
The reference pages behind the tools, kept up to date.
Northern lights forecast: how to read NOAA’s aurora maps, Kp and when to look
How to read the aurora forecast: the Kp index, NOAA alerts and where the northern lights can reach.
GuideMeteor shower tonight: every major peak from October 2026 to August 2027
Every major meteor shower of the year: peak nights, rates and how the Moon affects them.
GuideThe Aug. 2, 2027 total solar eclipse: 6 min 22 s of totality in Egypt
The longest total solar eclipse of the decade: the path, the countries and how long totality lasts.
What these tools do
Each tool answers one question about tonight’s sky or the next launch, for the place you choose and in your own time zone. The calculations run in your browser with Astronomy Engine, an open source astronomy library tested against NASA JPL’s Horizons system, and the live data comes from official sources such as NASA and NOAA. Your location stays in your browser.
New tools for eclipses, a map of the night sky and meteor showers are being added to this page as they are ready.