The Current Count
As of early 2026, there are roughly 10 people living in space at any given moment. That number splits across two space stations orbiting Earth: the International Space Station (ISS) and China's Tiangong. The ISS typically hosts seven crew members, while Tiangong supports a rotating crew of three taikonauts. Together, they represent a continuous human presence in orbit that has been unbroken since November 2000.
The exact headcount shifts throughout the year. During crew handovers, two vehicles may be docked at the same station simultaneously, temporarily pushing the total to 13 or higher. During quieter stretches between rotations, it can dip slightly. But on any ordinary day, you can safely say that about 10 humans are circling the planet at roughly 28,000 kilometers per hour, completing an orbit every 90 minutes.
This might seem like a small number, but it represents an enormous logistical effort. Every person in orbit depends on regular resupply missions for food, water, and equipment. Each crew member was selected from thousands of applicants, trained for years, and launched aboard a vehicle that took decades of engineering to develop. The fact that 10 people live off-planet on a permanent basis is one of the most remarkable (and underappreciated) achievements of our era.
Who Is on the ISS?
The ISS crew in early 2026 falls under Expedition 72, a designation that reflects the station's continuous expedition numbering system since 2000. Expedition crews are assembled from several international partners, and the makeup usually includes astronauts and cosmonauts from NASA, Roscosmos, ESA, JAXA, and CSA.
A typical ISS expedition includes four NASA or partner-agency crew members who arrive on a SpaceX Crew Dragon, plus two or three Russian cosmonauts who fly up on a Soyuz spacecraft. This dual-vehicle arrangement means the station always has at least two lifeboats docked and ready for an emergency evacuation. The commander role alternates between agencies, and each expedition lasts roughly six months before the next crew takes over.
Quick tip: Want to know exactly who is overhead right now? Skytrail shows the full crew roster for both the ISS and Tiangong, updated in real time. It is the app I check every morning.
The crew's nationalities during any given expedition can include Americans, Russians, Europeans, Japanese, and Canadians. Occasionally, short-duration visitors arrive on private Axiom missions or other special flights, which adds to the headcount for a week or two. For a detailed look at who is aboard right now, see our full breakdown of the current ISS crew.
Who Is on Tiangong?
China's Tiangong station, which completed its three-module T-shaped configuration in late 2022, maintains a permanent crew of three taikonauts. These crews are launched aboard Shenzhou spacecraft from the Jiuquan Satellite Launch Center in the Gobi Desert, and each crew typically stays for about six months before handing the station over to their replacements.
Tiangong crews are selected from the People's Liberation Army Astronaut Corps and, increasingly, from civilian scientists and engineers. The station orbits at a lower inclination than the ISS (about 41.5 degrees compared to the ISS's 51.6 degrees), which means it passes over a different band of the Earth's surface. Each Shenzhou mission is numbered sequentially. Shenzhou-19 and Shenzhou-20 crews, for example, overlap briefly during handover periods, bringing the Tiangong headcount to six for about a week.
China operates Tiangong independently from the ISS partnership, so the two programs run on separate schedules. This means crew changes on Tiangong do not line up with ISS rotations, and the combined total of people in space fluctuates as each station goes through its own rotation cycle. For more on Tiangong's design and operations, see our complete Tiangong guide.
How Crew Rotations Work
Crew rotations are the reason the number of people in space changes from week to week. Each station follows its own cadence, but the basic idea is the same: a fresh crew launches, docks with the station, and overlaps with the outgoing crew for a handover period before the departing crew returns to Earth.
On the ISS, rotations happen through two vehicle types. NASA and its partners use SpaceX Crew Dragon capsules, which carry four astronauts at a time and are launched from Kennedy Space Center in Florida. Russia uses Soyuz capsules, carrying three cosmonauts each, launched from Baikonur Cosmodrome in Kazakhstan. A typical rotation cycle looks like this: the new Dragon crew arrives and works alongside the outgoing Dragon crew for about five days. During that handover window, the ISS might have 11 people aboard instead of the usual seven. Once the departing crew climbs into their capsule and undocks, the headcount drops back to normal.
Tiangong follows a similar pattern with Shenzhou spacecraft. The incoming Shenzhou docks at one port while the outgoing Shenzhou remains at the other. The two three-person crews share the station for roughly a week, giving the newcomers time to learn the current state of ongoing experiments, review any maintenance issues, and settle into their new home. Then the outgoing crew seals their hatch and deorbits.
These overlap periods are the main reason you will sometimes see headlines announcing an unusually high number of people in space. It is not that anything extraordinary happened. It just means two crews are coexisting on the same station for a few days.
The Record for Most People in Space at Once
The question of "most people in space at the same time" has an answer that keeps changing. During the Space Shuttle era, the record was 13 people, set when a shuttle crew of seven visited the ISS while it already had six crew members aboard. That was the benchmark for years.
More recently, the growth of commercial crew missions has pushed the number even higher. On May 30, 2023, a total of 17 people were in orbit simultaneously when you count the ISS crew, a visiting Axiom-2 private crew, and three taikonauts aboard Tiangong. That number was later topped, reaching 19 during a particularly busy period when multiple vehicles were docked at the ISS at the same time while Tiangong also had a full crew.
These records tend to be short-lived. They occur during the narrow windows when crew handovers and private missions happen to overlap. Within a few days the visiting crew undocks, the count drops, and things return to the typical baseline of about 10. But the trend is clearly upward. As commercial stations come online later this decade (Axiom Station, Orbital Reef, Starlab, and others), we should expect the average number of people in space to climb steadily.
How to Track the Crew in Real Time
Knowing how many people are in space is one thing. Watching where they are, in real time, is something else entirely. Because both the ISS and Tiangong orbit at low altitude (roughly 400 to 420 kilometers up), they circle the Earth about 16 times per day and are frequently visible to the naked eye around dawn and dusk.
Several tools can help you follow along. NASA's Spot the Station website provides sighting predictions for the ISS based on your location. For Tiangong, the options are more limited from official sources, but third-party tracking apps fill the gap. I use Skytrail to keep tabs on who is aboard each station in real time, and it sends me alerts whenever the ISS or Tiangong is about to pass over my location. It shows both stations on a live map with full crew rosters, and honestly, it has become part of my daily routine.
Tracking the crew this way adds a surprisingly personal dimension. When you see a bright point of light gliding silently across the sky, it stops being an abstract statistic. Those are real people up there, eating dinner, running experiments, and looking back down at you. Knowing their names and reading about their missions makes each pass feel a little different. If you are curious about the best tracking tools available, we have a full comparison of apps for tracking astronauts and space stations.