ISS Tracker FAQ
How fast does the ISS travel?
The International Space Station travels at a speed of approximately 28,000 km/h (17,500 mph), orbiting Earth every 90 minutes.
Can I see the ISS from Earth?
Yes! The ISS is the third brightest object in the sky and can often be seen with the naked eye as a fast-moving bright light.
How many astronauts are on board?
Typically, the ISS hosts a crew of 7 astronauts and cosmonauts, though this number can vary during crew rotations.
How high is the ISS orbit?
The ISS orbits at an altitude of approximately 400-420 kilometers (250-260 miles) above Earth.
Who built the ISS?
The ISS is a collaborative project involving five space agencies: NASA (USA), Roscosmos (Russia), ESA (Europe), JAXA (Japan), and CSA (Canada).