New ISS Crew Tackles Cancer, Climate, and Cartilage from Orbit

KENNEDY SPACE CENTER, Fla. – February 18, 2026 – Far above Earth, a new team of international astronauts has begun a months-long science expedition aboard the International Space Station (ISS), transforming the orbiting outpost into a bustling laboratory for innovations aimed at our planet’s most pressing challenges. The Crew-12 mission, which launched from NASA's Kennedy Space Center on February 13, delivered a multinational crew poised to work on dozens of investigations that could revolutionize everything from cancer therapy and carbon capture to regenerative medicine.

The crew, comprising NASA astronauts Jessica Meir and Jack Hathaway, European Space Agency astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev, has joined the Expedition 74 members. Their mission underscores the station's evolving role: less a frontier for exploration and more a critical platform for generating tangible benefits for humanity, all sponsored by the ISS National Laboratory.

From Orbit to Operating Room: A New Frontier in Medicine

Among the most promising investigations are those focused on human health, leveraging the unique microgravity environment to overcome obstacles that hinder medical research on the ground. One such project, led by startup Eascra Biotech and researchers at the University of Connecticut, is advancing a novel approach to cancer treatment.

The team is refining the production of Janus base nanomaterials (JBNs), synthetic molecules 1,000 times smaller than a cell that self-assemble into DNA-like structures. These tiny tubes can be loaded with potent drugs and sent directly into hard-to-penetrate solid tumors. On Earth, gravity-driven convection causes these delicate molecules to clump together during assembly, creating defects that limit their effectiveness. In the near-weightlessness of space, they can assemble into more perfect, orderly structures, vastly improving their potential as a precision drug delivery system. This in-space manufacturing is seen as a crucial step toward commercializing a therapy that could target cancer more effectively while reducing debilitating side effects. This investigation builds on the team's previous work, which initially explored using JBNs to regenerate cartilage for osteoarthritis patients.

That same battle against osteoarthritis is being waged by another project aboard the station. Researchers from the University of California, Irvine, are studying how cartilage grows in microgravity. This work is part of a long-term, multi-million-dollar partnership between the U.S. National Science Foundation (NSF) and the ISS National Lab, which has funded over 45 investigations in tissue engineering and physical sciences. By observing cartilage development without the compressive force of gravity, scientists hope to unlock new methods for producing tissue on Earth, potentially leading to breakthrough treatments for the millions suffering from joint injuries and degenerative diseases.

The Business of Innovation: Public-Private Partnerships Fuel Discovery

The current mission also highlights a major shift in space-based research, where private industry and global partnerships are becoming the primary drivers of innovation. This collaborative model is creating a burgeoning low Earth orbit economy, with companies investing in R&D that would be impossible anywhere else.

Nikon, a world leader in precision optics, is testing a newly customized microscope designed for real-time observation of human cells and tissue chips in space. This instrument aims to be the most advanced off-planet microscope for evaluating these microphysiological systems, which are vital for disease modeling. It joins a legacy of powerful imaging tools on the ISS, including NASA's Light Microscopy Module and the 3D-imaging ELVIS microscope. By enabling faster, more detailed data collection in orbit, Nikon's technology could significantly accelerate the pace of discovery for researchers back on the ground.

This trend of commercial investment is further exemplified by the ISS National Lab Sustainability Challenge. In a partnership with cosmetics giant Estée Lauder, the "Beyond Plastics" initiative is funding research to solve Earth's plastic waste crisis. One project from SRI International will study the formation of aerogels in space. These ultralight, porous materials show promise for capturing carbon dioxide from the atmosphere. The captured carbon could then potentially replace petroleum as a feedstock for creating new, more sustainable plastics, aligning with Estée Lauder's goal of fostering a circular materials economy. The unique conditions of microgravity are expected to enable discoveries in material science that could lead to a new generation of sustainable products.

Cultivating the Next Generation of Scientists

Beyond corporate boardrooms and advanced laboratories, the ISS mission reaches directly into classrooms across North America, inspiring a future generation of innovators. The Tomatosphere™ program, a long-standing educational project run by the First the Seed Foundation, continues its work of sending tomato seeds to the space station.

These space-flown seeds, along with a control group that remained on Earth, are sent to thousands of classrooms. Since its inception in 2001, the program has engaged over three million students in a massive, hands-on science experiment. Students plant both sets of seeds in a blind test, meticulously tracking germination and growth rates to see how the harsh environment of space affects plant biology. Annually, more than 24,000 classrooms participate, contributing their data to a collective scientific effort.

This simple yet powerful project does more than just teach plant science; it connects students directly to the grand endeavor of space exploration, teaching them the principles of scientific inquiry, data collection, and hypothesis testing. It makes the work happening 250 miles above their heads relatable and tangible, sparking curiosity in STEM fields and preparing a workforce ready to tackle the scientific challenges of tomorrow.

As the Crew-12 astronauts settle in for their tour of duty, their work represents more than a series of isolated experiments. It is a testament to the space station’s role as a nexus of global collaboration, a platform where science, industry, and education converge to push the boundaries of what is possible, both in the cosmos and here on Earth.