Sky lantern
What the hell was that?
Report what you saw in under a minute. We check satellites, rockets, planets, planes, meteors and weather for your exact time and place, then show you the receipts.
Report a sighting What's up tonight
Free · No account needed · Real data from NOAA, Space-Track, CelesTrak and Launch Library
Latest case
Sky lantern
Tonight
Set your city and we will list tonight's ISS passes, Starlink trains and launches. Pick a city or
How it works
1 Report it
Where, when, which direction, how long. Add a photo if you have one. Takes about a minute.
2 We check the sky
Satellite orbits, launch schedules, planets, the Moon, space weather, local weather and aircraft, frozen for your exact minute.
3 Get the verdict
Ranked explanations with reasons and a confidence score. If nothing fits, we say so and the case stays open.
Recent cases
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What it usually turns out to be
Starlink trainA line of lights gliding in silence
Bright planetVenus, the most reported object in the sky
Rocket plumeThe twilight jellyfish
FireballGone in seconds, sometimes with a boom
DroneHovers, darts, blinks
Weather balloonA white dot that will not move
AuroraCurtains of green and red
AircraftRed, green, white, blink
Still unexplainedThe ones the data could not pin down
5 cases · 3 explained · 0 still open · 5 places · computed from public data, free for everyone.