No GroundPoint your phone
On a phone, tap the phone button on the map and hold it up. The map follows where you point, like a window onto the sky.
Your sky, right now
Drag to look aroundPinch or scroll to zoomTap anything to name it
Where are you?
Your location is used only in this page to draw the sky. It is not saved and not sent anywhere.
Show on the map
Hold your phone up to the sky. If the map is off, drag sideways to line it up.
--:--Live
Tonight
Look up
Tonight’s best 3
Working out tonight…
More tonight
Tonight
Worked out for your place and date. Tap “Show me” and the map turns to it.
Space station
The ISS right now
Where it is, what it is flying over, and when you can see it from your place.
REAL PHOTO · NASA BLUE MARBLE
Finding the ISS…
–Over
–Height
–Speed
–Station is in
Its path around Earth
computing…Orange: path for the next 90 min. Faint: last 45 min. Shading: night side of Earth right now. Map: NASA Blue Marble.
Next passes over you
- Working out passes…
Other satellites over you
orbit dataISSSpace stationsStarlink trainsHubble
- Loading satellites…
New Starlink “trains” (a line of dots, days after a launch) are the easiest to see. They spread out after a few weeks. All of them show on the map above in their colours (Layers → Satellites).
Positions: public orbit data (TLE, from CelesTrak / Space-Track via wheretheiss.at and tle.ivanstanojevic.me) and satellite.js (MIT licence), cross-checked with wheretheiss.at. Place names below the ISS: BigDataCloud. Earth images: NASA Blue Marble and Black Marble (credit: NASA).
Working out the Moon…
Sky calendar
What’s coming up
Moon phases, meteor showers, planets and eclipses.
- Working it out…
Next rocket launches
The Space Devs- Loading launches…
Spacewalks & ISS events
The Space Devs- Loading…
Moon phases, planets and conjunctions are worked out in your browser (No Ground sky engine, JPL orbital elements). Meteor showers: IMO working list. Eclipses: NASA GSFC eclipse pages. Launches and spacewalks: The Space Devs Launch Library 2.
Space weather
Aurora (northern lights)
How stirred up Earth’s magnetic field is now and over the next 3 days.
Kp index
NOAA SWPC, live–
Loading the Kp index…
Kp 0–9 measures how stirred up Earth’s magnetic field is. Higher means the aurora reaches further from the poles. “Kp you need” is a rough guide for your latitude (it differs a bit between Europe and America). Faded bars are measured, bright bars are NOAA’s forecast.
Live video
Watch space live
Official live streams from NASA and SpaceX. Nothing from YouTube loads until you tap play, and the video starts muted.
Coming up live
The Space Devs- Loading launches and NASA events…
Official NASA and SpaceX webcasts listed by The Space Devs. NASA YouTube streams play here when you tap; SpaceX now streams most launches on X, so those links open SpaceX’s official webcast there. More: NASA’s live streams on YouTube · SpaceX on YouTube.
Videos are NASA’s and SpaceX’s own live streams, shown in YouTube’s privacy-enhanced player (youtube-nocookie.com). Nothing from YouTube loads until you tap play. Launch and event times: The Space Devs Launch Library 2.
Find anything
Search for a planet, a star, a constellation or a galaxy. If it is below the horizon, an arrow shows the way and the map tells you when it rises.
Travel in time
Slide the time bar or press play to watch the night turn. Use the arrows to jump a day.
Spot the ISS
Tap “ISS” on the map. If the station is up, the map turns to it; if not, it jumps to the next time you can see it, with its path drawn across the stars.
Share your sky
The share button makes a picture of your view with the No Ground mark. Tap an object first to share a link that opens the map pointed at it.
Keep your night vision
The red eye button turns the page red. Red light does not undo the dark-adaptation of your eyes the way white light does.
Positions are calculated in your browser for the time and place shown: planets from NASA JPL’s orbital elements, the Moon from a standard lunar theory, stars from the Hipparcos-based catalogue in d3-celestial by Olaf Frohn (BSD licence, notices), with IAU star names, constellation lines and boundaries. Real photos of planets, stars and deep-sky objects come from NASA, ESA, ESO, NOIRLab and others, credited under each photo. The Milky Way behind the map is the ESO/S. Brunier panorama (CC BY 4.0, adapted to sky coordinates); the drawn glow is our own approximation. Satellites and the ISS: public orbit data (CelesTrak / Space-Track) with satellite.js (MIT licence). Launches and spacewalks: The Space Devs. Aurora: NOAA SWPC. Live video: official NASA and SpaceX YouTube streams, loaded only when you tap play. Typed town names that are not in our built-in list are looked up with Open-Meteo (only the name you type is sent). Not affiliated with or endorsed by NASA, ESA or ESO. Accuracy is about a few arcminutes, plenty for the eye and binoculars. Your location never leaves your device. Never look at the Sun without a proper solar filter.