After three months of articles about what's happening in orbit, here is the practical version: you can watch a lot of it yourself. On a clear evening, from almost anywhere, you can see a football-field-sized space station with a crew of astronauts aboard glide silently overhead. With a little timing, you might catch a line of freshly launched Starlink satellites marching across the sky in single file.
You don't need a telescope. For most of this you don't even need binoculars. You need to know when to look.
Why You Can See Satellites at All
Satellites don't produce their own light. What you see is sunlight reflecting off their solar panels and bodies. That creates a specific window: you need to be standing in darkness while the satellite, a few hundred kilometres above you, is still in sunshine.
That combination happens mainly in the first hour or two after sunset and the last hour or two before sunrise. In the middle of the night, most satellites in low orbit pass through Earth's shadow too, and they vanish. During the day the sky is too bright. So the best satellite-spotting is at dusk and dawn, which is also convenient.
Spotting the International Space Station
The ISS is the easiest and most rewarding target. It orbits at around 400 km, is enormous for a spacecraft, and has huge solar arrays that catch the sunlight. At its brightest it outshines every star and planet in the sky except Venus.
What it looks like: a very bright, steady white point of light moving smoothly across the sky. It doesn't blink or flash. It crosses from one horizon to the other in about four to six minutes on a good pass, faster than a plane seems to move and far slower than a meteor.
How to tell it from an aircraft: planes have flashing red, green, or white navigation lights, and you can often hear them. The ISS has no blinking lights and makes no sound. It also sometimes fades out partway across the sky, which happens when it passes into Earth's shadow. Watching it dim and disappear mid-sky, as the station's sunset happens in front of you, is one of the best parts.
Know exactly when to look. Our live ISS tracker shows where the station is right now and can estimate your next pass. NASA's free Spot the Station service will also send you alerts for good passes where you live.
Choosing a good pass: passes vary a lot. Look for ones that climb high, ideally more than 40 degrees above the horizon, and that happen while the sky is properly dark. A low pass skimming the horizon is easily lost behind trees and buildings. Pass predictions list where it appears, how high it climbs, and where it disappears, so you know which way to face.
Spotting Starlink Satellites
Individual Starlink satellites are much fainter than the ISS, and SpaceX has deliberately made newer ones dimmer to reduce their impact on astronomy. From a dark site you'll often notice faint satellites drifting across the sky, and some of them will be Starlinks. But the famous sight, the "Starlink train", is something else.
The Starlink train appears shortly after a launch. SpaceX releases a batch of satellites together in a low orbit, and for the first days they travel in a tight line before gradually raising their orbits and spreading out. For that brief period they look like a string of pearls: a dozen or more evenly spaced lights gliding across the sky in single file. People who don't know what it is regularly report it as a UFO.
Because the train only lasts a few days after each launch, timing matters. That's where the launch schedule becomes useful. A Starlink launch is your cue to start checking pass predictions for the following nights. Our launch countdown shows every upcoming Starlink mission.
Steady, very bright, crosses in minutes: the ISS. A line of evenly spaced lights: a recently launched Starlink batch. Faint, steady, drifting: one of thousands of other satellites. Blinking coloured lights: an aircraft. A streak lasting under a second: a meteor.
Tips for a Good Viewing Session
Let your eyes adjust. Your night vision takes around 20 minutes to fully develop, and a single glance at a bright phone screen resets much of it. If you're using an app, switch it to red-light or night mode.
Get away from lights if you can. The ISS is bright enough to see from the middle of a city. Fainter satellites and Starlink trains are far easier from a darker spot, even a park or a back garden away from streetlights.
Binoculars help with the fainter stuff. They won't show detail on the ISS, which moves too fast, but they make faint satellites far easier to follow. A basic pair is also the best first instrument for the Moon and star clusters. Our gift guide explains why binoculars often beat a cheap telescope.
Check the weather and the Moon. Thin cloud will wash out faint satellites. A bright full Moon does the same. The ISS cuts through both, so it's a good target on any reasonably clear night.
Photographing Satellites
Satellites are surprisingly easy to photograph, because you don't have to freeze their motion. You capture the trail instead.
Put a camera, or a phone with a manual or night mode, on something solid: a tripod, a wall, even a bag of rice. Point it at the part of the sky the satellite will cross, set an exposure of around 10 to 30 seconds, and start the shot just before it arrives. The ISS will appear as a bright continuous streak across the frame, with stars as points around it. Several exposures stacked together produce a streak across the whole sky. Starlink trains photograph as parallel lines.
Many modern phones can do this well in night mode if they're held perfectly still. A cheap phone tripod is the single most useful accessory.
A Brief Note on What You're Seeing
The number of satellites visible to the naked eye has risen sharply in the last few years, largely because of large constellations like Starlink. For casual observers, that means more to see. For professional astronomers, it means more streaks across long-exposure images of distant galaxies, a tension we covered in our Starlink explainer. Both things are true at once.
Either way, there's something quietly remarkable about stepping outside after dinner and watching a crewed spacecraft pass overhead, a few hundred kilometres up and moving at nearly 28,000 km/h. It's one of the easiest ways to feel connected to everything else we write about here. Pick a clear evening this week, check the next pass, and look up.