NASA's welcome-home event for Expedition 74 on Tuesday, Nov. 17, at Space Center Houston offers more than a celebration of safe returns—it presents an opportunity to underscore why international cooperation in space remains non-negotiable for humanity's future. The crew of five, comprising NASA astronauts Jessica Meir, Jack Hathaway, and Chris Williams; ESA astronaut Sophie Adenot; and Roscosmos cosmonauts Sergey Kud-Sverchkov and Sergei Mikaev, completed missions that spanned 237 to 241 days in orbit. Their work generated breakthrough results that no single nation could have achieved alone.
Consider the scope of what these crews accomplished. During their combined time aboard the International Space Station, Expedition 74 members dedicated more than 1,400 hours to scientific research and technology demonstrations. They tested metal and tissue 3D-printing technologies, conducted blood flow studies, performed pharmaceutical research to crystalize proteins for cancer medications and advance tumor targeting treatments, and grew stem cells for therapeutics. They also activated a new compact exercise system and evaluated life-support systems critical to NASA's Artemis program. These are not achievements that fit neatly into national budgets or political boundaries—they benefit all of humanity.
The crew's dual-origin launches underscore an evolving reality in spaceflight. Williams, Kud-Sverchkov, and Mikaev launched aboard Soyuz MS-28 from Kazakhstan on Nov. 27, 2025, and returned on July 26 after traveling more than 102 million miles across 3,856 orbits. Meir, Hathaway, and Adenot launched aboard Dragon as part of SpaceX Crew-12 on Feb. 13 from Cape Canaveral and splashed down on Oct. 8 in the Pacific Ocean. Different rockets, different landing zones, different nations—yet a unified scientific mission. This diversity of access strengthens rather than weakens the space enterprise.
What makes this homecoming meaningful is not just the data returned, but the proof it offers that sustained human presence in space demands international collaboration. For more than 26 years, continuous human occupation of the ISS has remained possible only through coordinated effort among multiple nations and space agencies. The Expedition 74 crews cared for the first set of plants studied outside of curated systems and managed visiting spacecraft—routine operations that require seamless international coordination.
As the crew shares mission highlights and receives recognition at Space Center Houston, NASA should emphasize that this model works and must continue. The educational events, outreach activities, and imagery these astronauts and cosmonauts shared with students worldwide demonstrated that space exploration transcends geopolitics. If we aspire to establish sustained human presence on the Moon under Artemis and eventually reach Mars, the Expedition 74 achievement offers a clear blueprint: international crews, shared research, common purpose.