
The International Space Station (ISS) is a multi-nation laboratory, orbiting 248 miles (400 kilometers) above our heads. It perhaps comes as no surprise that it's easy to see and track the ISS from Earth.
We can see the ISS from Earth because the colossal structure reflects sunlight, appearing as a bright white pinpoint of light in the sky. When visible, the ISS will typically be the brightest object in the sky (except for the moon), and can even be spotted from the middle of a city.