01 Overview · NORAD 25544
International Space Station
Explore humanity’s orbiting laboratory.
A laboratory about 400 km up, circling the planet every hour and a half. Five space agencies from fifteen countries run it together, and people have lived aboard without a break since November 2000 — studying biology, physics and the human body in weightlessness, and testing what longer missions will need.
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Position computed when data arrives from CelesTrak elements. Crew: Launch Library 2.
02Orbit
Around Earth, continuously.
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Computed with SGP4 from CelesTrak’s published element set. The position is a prediction from that fit, not a live measurement; the error grows with the fit’s age. Sunlit or in shadow is the station’s physical state — the console’s Full illumination option only changes how the globe is drawn, never this. Region names come from a generalised coastline and can be the wrong side of a coast by up to about 200 km.
03See it tonight
See the station from your city.
Your location is kept in this browser and sent nowhere except as coordinates for the cloud forecast.
04Crew & vehicles
The people and spacecraft on board.
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05Live & updates
Life and science in orbit.
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Broadcasts: Launch Library 2 event feed; channels verified with YouTube. Autoplay is off and sound starts only when you press play. A black picture does not mean the station is on the night side — feeds drop for many reasons.
Latest ISS updates
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06Explore the station
A laboratory built in orbit.
Schematic, top view, forward to the right. The connections between modules are correct; sizes and spacing are not to scale, and Earth- and space-facing modules are drawn beside the modules they are attached to. Configuration as of 2026. Not every module is labelled.
Select a module on the diagram or in the list.
Inside the station
Walk through the inside of the station, from the European laboratory to the Dragon’s window, on footage NASA recorded aboard in October 2022. Scroll to move through it.
Module descriptions: Orbira editorial, checked against the agency pages linked on each card. The model in the 3D view is representative and not to scale; its orientation along the orbit is illustrative, because the station’s attitude is not in any public feed this product reads.
07History
Built over decades. Still evolving.
20 Nov 1998
Zarya reaches orbit
A Proton rocket launches the first module from Baikonur.
NASA — ISS reference ↗4 Dec 1998
Unity joins it
Space Shuttle Endeavour delivers the first U.S. module on STS-88.
NASA — ISS reference ↗2 Nov 2000
The first crew moves in
Expedition 1 arrives on Soyuz TM-31. The station has been occupied without a break ever since.
NASA — International Space Station ↗7 Feb 2001
Destiny, the U.S. laboratory
STS-98 launches the module that becomes the centre of U.S. research aboard.
NASA — ISS reference ↗7 Feb 2008
Europe and Japan add laboratories
Columbus launches in February and Kibo’s modules follow through 2008 and 2009.
JAXA — Kibo ↗8 Feb 2010
Tranquility and the Cupola
STS-130 delivers life-support equipment and the station’s seven-window observatory.
ESA — Cupola ↗8 Jul 2011
The last Space Shuttle flight
STS-135 completes a programme of 42 assembly flights — 37 by the shuttle and 5 Russian.
NASA — Space Station Facts and Figures ↗25 May 2012
The first commercial cargo ship
SpaceX’s Dragon is berthed, opening resupply to commercial vehicles.
NASA — International Space Station ↗31 May 2020
The first commercial crew
Crew Dragon Demo-2 docks, the first crew launched from U.S. soil since 2011.
NASA — International Space Station ↗29 Jul 2021
Nauka docks
Russia’s multipurpose laboratory joins the station, followed by the Prichal node in November.
NASA — ISS reference ↗2 Nov 2025
Twenty-five years aboard
A quarter of a century of continuous human presence in orbit.
NASA — International Space Station ↗
The station in figures
- Mass
- 419.7t
- Pressurised volume
- 1,005m³
- Habitable volume
- 388m³
- End to end
- 109m
- Parts described
- 12
- Partners
- 5
Approximate; changes with cargo
Excluding visiting vehicles
On the schematic in chapter 06
Agencies, from 15 countries
Figures: NASA — Space Station Facts and Figures ↗, checked 2026-09-24; alternative figures from Launch Library 2. The two sources do not agree on every number, and both change as modules and cargo come and go.
Orbit as recorded by Orbira
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08What changed
What changed on the ISS?
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Follow the ISS. Understand every meaningful change.