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After 20 years of continuous habitation, the International Space Station has entered its Golden Age and is abuzz with activity — thanks in large part to the return of U.S. rocket launches via commercial partner SpaceX.

But though the near-future of this symbol of post-Cold War cooperation is assured, NASA wants to begin disengaging by the end of the decade, leaving a gap that the private sector and China hope to fill.

“This space station has become the spaceport we wanted it to be,” Kathy Lueders, chief of NASA’s human spaceflight program said at a recent news briefing.

The end of the Space Shuttle program in 2011 left America dependent on Russian Soyuz rockets for “taxi” rides to the giant satellite.

SpaceX changed that last year with the success of its Crew Dragon, which is now preparing for its second routine crewed flight, and third overall, in April.

“Our recent agreements with the American private industry has allowed us to bring more people to space, more people to the International Space Station,” said Joel Montalbano, NASA’s ISS program manager.

Since the spacecraft can carry four people — compared to three for Soyuz — the standard crew size for the space station has grown from six to seven people.

The ISS therefore needs a new bed — with assembly currently under way.

Italian ESA astronaut Samantha Cristoforetti poses in the Cupola module of the International Space Station in 2015. | ESA / NASA / VIA AFP-JIJI
Italian ESA astronaut Samantha Cristoforetti poses in the Cupola module of the International Space Station in 2015. | ESA / NASA / VIA AFP-JIJI

SpaceX’s Crew-2 mission blasts off from Florida on April 22, and the four astronauts will overlap for a few days with the crew of Crew-1 before that team returns from its six-month mission.

During this time, the station will accommodate no fewer than 11 people.

“We’re going to be kind of I think in a campout mode,” joked Crew-2 spacecraft commander Shane Kimbrough.

“We just find a place to sleep on a wall somewhere or on the ceiling, it doesn’t matter up there.”

“We’re entering the Golden Age of ISS utilization,” David Parker, director of human and robotic at the European Space Agency (ESA).

It was former president Ronald Reagan who invoked America’s “pioneer spirit” when he directed NASA to “develop a permanently manned space station.”

The first components were sent into space in 1998, while the first crew spent several months there in 2000.

The latest pressurized module was fitted in 2011, leaving the enormous artificial satellite 109 meters end-to-end, about the size of an American football field.

“For the first half of the space station’s life, most of the focus was on building it,” said Robert Pearlman, a space historian and author of “Space Stations: The Art, Science, and Reality of Working in Space.”

Now, astronauts still need to work on maintenance jobs, “but the majority of their time is spent on performing hundreds of science investigations,” he added.

More than 3,000 experiments have been carried out in this microgravity laboratory, which flies at an average 400 kilometers above Earth, at 28,000 kph.

The immediate future of the ISS is officially assured until 2024 by the United States, Russia, Europe, Japan and Canada.

Japan Aerospace Exploration Agency astronaut Soichi Noguchi departs for the launch pad with other crew members of the SpaceX Falcon 9 rocket at the Kennedy Space Center in Cape Canaveral, Florida, in November 2020. Noguchi is currently aboard the International Space Station. | REUTERS
Japan Aerospace Exploration Agency astronaut Soichi Noguchi departs for the launch pad with other crew members of the SpaceX Falcon 9 rocket at the Kennedy Space Center in Cape Canaveral, Florida, in November 2020. Noguchi is currently aboard the International Space Station. | REUTERS

“From a technical standpoint, we have cleared ISS to fly until the end of 2028,” NASA said in a statement. “Additionally, our analysis has not identified any issues that would preclude us from extending beyond 2028 if needed.”

Montalbano said he plans later this year to start an analysis for the 2028-2032 period.

The use of the space station is expected to evolve.

NASA, which wants to disengage financially to focus on its deep space exploration with its Moon to Mars missions, announced in 2019 it would welcome paying tourists aboard the ISS to help offset costs.

They will hitch a ride with SpaceX or Boeing — whose own taxi program, Starliner, is lagging behind schedule.

“My hope is that we fly the first private astronaut mission in 2022,” Montalbano said.

Competitors are also on the horizon.

Private company Axiom Space wants to build the world’s first commercial space station — first by attaching its modules to the ISS, before eventually detaching and commencing orbit by itself.

China plans to start work on its own big space station, Tiangong, this year and hopes to complete it by 2022.

Russia and China last week unveiled plans for a joint lunar station, “on the surface and/or in the orbit of the Moon,” starting a new space alliance.

The move came after Moscow declined to participate in Gateway, NASA’s proposed lunar station.

It could then be a fitting symbol of the end of decades’ long U.S.-Russia space partnership when the ISS is finally de-orbited and plunges into an ocean.

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